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Finding the Fourth Proportional to 38,573.88, 53,230.50 and 21,807.24

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Solution

The fourth proportional to 38,573.88, 53,230.50 and 21,807.24 is: 30,093.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,573.88 : 53,230.50 = 21,807.24 : x
  2. Step 2: Convert to fraction form
    38,573.88/53,230.50 = 21,807.24/x
  3. Step 3: Cross multiply
    38,573.88x = 53,230.50 × 21,807.24
  4. Step 4: Simplify right side
    38,573.88x = 1,160,810,288.82
  5. Step 5: Solve for x
    x = 1,160,810,288.82/38,573.88
  6. Step 6: Final answer
    x = 30,093.17

Related Problems

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Half scale
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Double scale
Find fourth proportional to 38,574.88, 53,231.88 and 21,808.24
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.