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Finding the Fourth Proportional to 18,445.38, 25,454.57 and 10,061.88

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Solution

The fourth proportional to 18,445.38, 25,454.57 and 10,061.88 is: 13,885.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.38 : 25,454.57 = 10,061.88 : x
  2. Step 2: Convert to fraction form
    18,445.38/25,454.57 = 10,061.88/x
  3. Step 3: Cross multiply
    18,445.38x = 25,454.57 × 10,061.88
  4. Step 4: Simplify right side
    18,445.38x = 256,120,778.48
  5. Step 5: Solve for x
    x = 256,120,778.48/18,445.38
  6. Step 6: Final answer
    x = 13,885.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.