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Finding the Fourth Proportional to 21,655.06, 32,482.60 and 5,239.06

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Solution

The fourth proportional to 21,655.06, 32,482.60 and 5,239.06 is: 7,858.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.06 : 32,482.60 = 5,239.06 : x
  2. Step 2: Convert to fraction form
    21,655.06/32,482.60 = 5,239.06/x
  3. Step 3: Cross multiply
    21,655.06x = 32,482.60 × 5,239.06
  4. Step 4: Simplify right side
    21,655.06x = 170,178,345.37
  5. Step 5: Solve for x
    x = 170,178,345.37/21,655.06
  6. Step 6: Final answer
    x = 7,858.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.