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Finding the Fourth Proportional to 25,979.59, 38,946.03 and 9,335.71

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Solution

The fourth proportional to 25,979.59, 38,946.03 and 9,335.71 is: 13,995.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,979.59 : 38,946.03 = 9,335.71 : x
  2. Step 2: Convert to fraction form
    25,979.59/38,946.03 = 9,335.71/x
  3. Step 3: Cross multiply
    25,979.59x = 38,946.03 × 9,335.71
  4. Step 4: Simplify right side
    25,979.59x = 363,588,841.73
  5. Step 5: Solve for x
    x = 363,588,841.73/25,979.59
  6. Step 6: Final answer
    x = 13,995.17

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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.