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Finding the Fourth Proportional to 60,491.66, 90,737.18 and 15,512.81

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Solution

The fourth proportional to 60,491.66, 90,737.18 and 15,512.81 is: 23,269.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,491.66 : 90,737.18 = 15,512.81 : x
  2. Step 2: Convert to fraction form
    60,491.66/90,737.18 = 15,512.81/x
  3. Step 3: Cross multiply
    60,491.66x = 90,737.18 × 15,512.81
  4. Step 4: Simplify right side
    60,491.66x = 1,407,588,898.90
  5. Step 5: Solve for x
    x = 1,407,588,898.90/60,491.66
  6. Step 6: Final answer
    x = 23,269.14

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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.