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Finding the Fourth Proportional to 25,251.35, 37,876.97 and 7,721.17

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Solution

The fourth proportional to 25,251.35, 37,876.97 and 7,721.17 is: 11,581.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,251.35 : 37,876.97 = 7,721.17 : x
  2. Step 2: Convert to fraction form
    25,251.35/37,876.97 = 7,721.17/x
  3. Step 3: Cross multiply
    25,251.35x = 37,876.97 × 7,721.17
  4. Step 4: Simplify right side
    25,251.35x = 292,454,449.07
  5. Step 5: Solve for x
    x = 292,454,449.07/25,251.35
  6. Step 6: Final answer
    x = 11,581.74

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1.5x scale

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.