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Finding the Fourth Proportional to 17,253.27, 25,856.51 and 7,881.71

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Solution

The fourth proportional to 17,253.27, 25,856.51 and 7,881.71 is: 11,811.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,253.27 : 25,856.51 = 7,881.71 : x
  2. Step 2: Convert to fraction form
    17,253.27/25,856.51 = 7,881.71/x
  3. Step 3: Cross multiply
    17,253.27x = 25,856.51 × 7,881.71
  4. Step 4: Simplify right side
    17,253.27x = 203,793,344.74
  5. Step 5: Solve for x
    x = 203,793,344.74/17,253.27
  6. Step 6: Final answer
    x = 11,811.87

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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.