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Finding the Fourth Proportional to 60,492.14, 90,737.90 and 15,513.29

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Solution

The fourth proportional to 60,492.14, 90,737.90 and 15,513.29 is: 23,269.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,492.14 : 90,737.90 = 15,513.29 : x
  2. Step 2: Convert to fraction form
    60,492.14/90,737.90 = 15,513.29/x
  3. Step 3: Cross multiply
    60,492.14x = 90,737.90 × 15,513.29
  4. Step 4: Simplify right side
    60,492.14x = 1,407,643,356.69
  5. Step 5: Solve for x
    x = 1,407,643,356.69/60,492.14
  6. Step 6: Final answer
    x = 23,269.86

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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.