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Finding the Fourth Proportional to 25,843.92, 35,654.76 and 15,229.68

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Solution

The fourth proportional to 25,843.92, 35,654.76 and 15,229.68 is: 21,011.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,843.92 : 35,654.76 = 15,229.68 : x
  2. Step 2: Convert to fraction form
    25,843.92/35,654.76 = 15,229.68/x
  3. Step 3: Cross multiply
    25,843.92x = 35,654.76 × 15,229.68
  4. Step 4: Simplify right side
    25,843.92x = 543,010,585.28
  5. Step 5: Solve for x
    x = 543,010,585.28/25,843.92
  6. Step 6: Final answer
    x = 21,011.15

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Double scale
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1.5x scale

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.