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Finding the Fourth Proportional to 40,491.50, 60,737.24 and 14,203.76

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Solution

The fourth proportional to 40,491.50, 60,737.24 and 14,203.76 is: 21,305.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,491.50 : 60,737.24 = 14,203.76 : x
  2. Step 2: Convert to fraction form
    40,491.50/60,737.24 = 14,203.76/x
  3. Step 3: Cross multiply
    40,491.50x = 60,737.24 × 14,203.76
  4. Step 4: Simplify right side
    40,491.50x = 862,696,911.85
  5. Step 5: Solve for x
    x = 862,696,911.85/40,491.50
  6. Step 6: Final answer
    x = 21,305.63

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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.