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Finding the Third Proportional to 15,040 and 24,128

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Solution

The third proportional to 15,040 and 24,128 is: 38,707.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040 : 24,128 = 24,128 : x
  2. Step 2: Convert to fraction form
    15,040/24,128 = 24,128/x
  3. Step 3: Cross multiply
    15,040x = 24,128 × 24,128
  4. Step 4: Simplify right side
    15,040x = 582,160,384
  5. Step 5: Solve for x
    x = 582,160,384/15,040
  6. Step 6: Final answer
    x = 38,707.47

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.