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Finding the Fourth Proportional to 36,886.17, 50,902.78 and 20,970.62

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Solution

The fourth proportional to 36,886.17, 50,902.78 and 20,970.62 is: 28,939.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,886.17 : 50,902.78 = 20,970.62 : x
  2. Step 2: Convert to fraction form
    36,886.17/50,902.78 = 20,970.62/x
  3. Step 3: Cross multiply
    36,886.17x = 50,902.78 × 20,970.62
  4. Step 4: Simplify right side
    36,886.17x = 1,067,462,856.32
  5. Step 5: Solve for x
    x = 1,067,462,856.32/36,886.17
  6. Step 6: Final answer
    x = 28,939.38

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Half scale
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Double scale
Find fourth proportional to 36,887.17, 50,904.16 and 20,971.62
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.