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Finding the Fourth Proportional to 17,118.92, 25,671.90 and 6,725

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Solution

The fourth proportional to 17,118.92, 25,671.90 and 6,725 is: 10,084.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,118.92 : 25,671.90 = 6,725 : x
  2. Step 2: Convert to fraction form
    17,118.92/25,671.90 = 6,725/x
  3. Step 3: Cross multiply
    17,118.92x = 25,671.90 × 6,725
  4. Step 4: Simplify right side
    17,118.92x = 172,643,527.50
  5. Step 5: Solve for x
    x = 172,643,527.50/17,118.92
  6. Step 6: Final answer
    x = 10,084.95

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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.