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Finding the Fourth Proportional to 25,416, 38,123.46 and 11,372.76

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Solution

The fourth proportional to 25,416, 38,123.46 and 11,372.76 is: 17,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,416 : 38,123.46 = 11,372.76 : x
  2. Step 2: Convert to fraction form
    25,416/38,123.46 = 11,372.76/x
  3. Step 3: Cross multiply
    25,416x = 38,123.46 × 11,372.76
  4. Step 4: Simplify right side
    25,416x = 433,568,960.95
  5. Step 5: Solve for x
    x = 433,568,960.95/25,416
  6. Step 6: Final answer
    x = 17,058.90

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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.