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Finding the Third Proportional to 15,330 and 23,439

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Solution

The third proportional to 15,330 and 23,439 is: 35,837.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,330 : 23,439 = 23,439 : x
  2. Step 2: Convert to fraction form
    15,330/23,439 = 23,439/x
  3. Step 3: Cross multiply
    15,330x = 23,439 × 23,439
  4. Step 4: Simplify right side
    15,330x = 549,386,721
  5. Step 5: Solve for x
    x = 549,386,721/15,330
  6. Step 6: Final answer
    x = 35,837.36

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.