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Finding the Fourth Proportional to 57,907.28, 87,006.12 and 36,856.40

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Solution

The fourth proportional to 57,907.28, 87,006.12 and 36,856.40 is: 55,377.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,907.28 : 87,006.12 = 36,856.40 : x
  2. Step 2: Convert to fraction form
    57,907.28/87,006.12 = 36,856.40/x
  3. Step 3: Cross multiply
    57,907.28x = 87,006.12 × 36,856.40
  4. Step 4: Simplify right side
    57,907.28x = 3,206,732,361.17
  5. Step 5: Solve for x
    x = 3,206,732,361.17/57,907.28
  6. Step 6: Final answer
    x = 55,377.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.