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Finding the Third Proportional to 7,197 and 15,725

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Solution

The third proportional to 7,197 and 15,725 is: 34,358.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,197 : 15,725 = 15,725 : x
  2. Step 2: Convert to fraction form
    7,197/15,725 = 15,725/x
  3. Step 3: Cross multiply
    7,197x = 15,725 × 15,725
  4. Step 4: Simplify right side
    7,197x = 247,275,625
  5. Step 5: Solve for x
    x = 247,275,625/7,197
  6. Step 6: Final answer
    x = 34,358.15

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.