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Finding the Fourth Proportional to 62,475.92, 86,244.92 and 39,845.28

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Solution

The fourth proportional to 62,475.92, 86,244.92 and 39,845.28 is: 55,004.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,475.92 : 86,244.92 = 39,845.28 : x
  2. Step 2: Convert to fraction form
    62,475.92/86,244.92 = 39,845.28/x
  3. Step 3: Cross multiply
    62,475.92x = 86,244.92 × 39,845.28
  4. Step 4: Simplify right side
    62,475.92x = 3,436,452,985.98
  5. Step 5: Solve for x
    x = 3,436,452,985.98/62,475.92
  6. Step 6: Final answer
    x = 55,004.44

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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.