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Finding the Fourth Proportional to 60,877.92, 84,025.56 and 39,620.28

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Solution

The fourth proportional to 60,877.92, 84,025.56 and 39,620.28 is: 54,685.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,877.92 : 84,025.56 = 39,620.28 : x
  2. Step 2: Convert to fraction form
    60,877.92/84,025.56 = 39,620.28/x
  3. Step 3: Cross multiply
    60,877.92x = 84,025.56 × 39,620.28
  4. Step 4: Simplify right side
    60,877.92x = 3,329,116,214.36
  5. Step 5: Solve for x
    x = 3,329,116,214.36/60,877.92
  6. Step 6: Final answer
    x = 54,685.12

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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.