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Finding the Fourth Proportional to 62,805.60, 86,654.16 and 38,933.28

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Solution

The fourth proportional to 62,805.60, 86,654.16 and 38,933.28 is: 53,717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,805.60 : 86,654.16 = 38,933.28 : x
  2. Step 2: Convert to fraction form
    62,805.60/86,654.16 = 38,933.28/x
  3. Step 3: Cross multiply
    62,805.60x = 86,654.16 × 38,933.28
  4. Step 4: Simplify right side
    62,805.60x = 3,373,730,674.44
  5. Step 5: Solve for x
    x = 3,373,730,674.44/62,805.60
  6. Step 6: Final answer
    x = 53,717.04

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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.