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Finding the Fourth Proportional to 25,502.39, 38,259.74 and 8,860

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Solution

The fourth proportional to 25,502.39, 38,259.74 and 8,860 is: 13,292.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,502.39 : 38,259.74 = 8,860 : x
  2. Step 2: Convert to fraction form
    25,502.39/38,259.74 = 8,860/x
  3. Step 3: Cross multiply
    25,502.39x = 38,259.74 × 8,860
  4. Step 4: Simplify right side
    25,502.39x = 338,981,296.40
  5. Step 5: Solve for x
    x = 338,981,296.40/25,502.39
  6. Step 6: Final answer
    x = 13,292.14

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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.