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Finding the Third Proportional to 13,442 and 17,403

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Solution

The third proportional to 13,442 and 17,403 is: 22,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442 : 17,403 = 17,403 : x
  2. Step 2: Convert to fraction form
    13,442/17,403 = 17,403/x
  3. Step 3: Cross multiply
    13,442x = 17,403 × 17,403
  4. Step 4: Simplify right side
    13,442x = 302,864,409
  5. Step 5: Solve for x
    x = 302,864,409/13,442
  6. Step 6: Final answer
    x = 22,531.20

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.