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Finding the Third Proportional to 9,712 and 15,400

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Solution

The third proportional to 9,712 and 15,400 is: 24,419.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,712 : 15,400 = 15,400 : x
  2. Step 2: Convert to fraction form
    9,712/15,400 = 15,400/x
  3. Step 3: Cross multiply
    9,712x = 15,400 × 15,400
  4. Step 4: Simplify right side
    9,712x = 237,160,000
  5. Step 5: Solve for x
    x = 237,160,000/9,712
  6. Step 6: Final answer
    x = 24,419.28

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.