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Finding the Fourth Proportional to 25,351.29, 38,026.49 and 7,581.99

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Solution

The fourth proportional to 25,351.29, 38,026.49 and 7,581.99 is: 11,372.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,351.29 : 38,026.49 = 7,581.99 : x
  2. Step 2: Convert to fraction form
    25,351.29/38,026.49 = 7,581.99/x
  3. Step 3: Cross multiply
    25,351.29x = 38,026.49 × 7,581.99
  4. Step 4: Simplify right side
    25,351.29x = 288,316,276.78
  5. Step 5: Solve for x
    x = 288,316,276.78/25,351.29
  6. Step 6: Final answer
    x = 11,372.85

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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.