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Finding the Fourth Proportional to 15,916.74, 23,872.02 and 15,126.45

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Solution

The fourth proportional to 15,916.74, 23,872.02 and 15,126.45 is: 22,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,916.74 : 23,872.02 = 15,126.45 : x
  2. Step 2: Convert to fraction form
    15,916.74/23,872.02 = 15,126.45/x
  3. Step 3: Cross multiply
    15,916.74x = 23,872.02 × 15,126.45
  4. Step 4: Simplify right side
    15,916.74x = 361,098,916.93
  5. Step 5: Solve for x
    x = 361,098,916.93/15,916.74
  6. Step 6: Final answer
    x = 22,686.74

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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.