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Finding the Fourth Proportional to 60,787.28, 83,896.17 and 35,636.78

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Solution

The fourth proportional to 60,787.28, 83,896.17 and 35,636.78 is: 49,184.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,787.28 : 83,896.17 = 35,636.78 : x
  2. Step 2: Convert to fraction form
    60,787.28/83,896.17 = 35,636.78/x
  3. Step 3: Cross multiply
    60,787.28x = 83,896.17 × 35,636.78
  4. Step 4: Simplify right side
    60,787.28x = 2,989,789,353.13
  5. Step 5: Solve for x
    x = 2,989,789,353.13/60,787.28
  6. Step 6: Final answer
    x = 49,184.46

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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.