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Finding the Third Proportional to 15,385 and 22,001

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Solution

The third proportional to 15,385 and 22,001 is: 31,462.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385 : 22,001 = 22,001 : x
  2. Step 2: Convert to fraction form
    15,385/22,001 = 22,001/x
  3. Step 3: Cross multiply
    15,385x = 22,001 × 22,001
  4. Step 4: Simplify right side
    15,385x = 484,044,001
  5. Step 5: Solve for x
    x = 484,044,001/15,385
  6. Step 6: Final answer
    x = 31,462.07

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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.