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Finding the Third Proportional to 15,372 and 22,017

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Solution

The third proportional to 15,372 and 22,017 is: 31,534.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,372 : 22,017 = 22,017 : x
  2. Step 2: Convert to fraction form
    15,372/22,017 = 22,017/x
  3. Step 3: Cross multiply
    15,372x = 22,017 × 22,017
  4. Step 4: Simplify right side
    15,372x = 484,748,289
  5. Step 5: Solve for x
    x = 484,748,289/15,372
  6. Step 6: Final answer
    x = 31,534.50

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.