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Finding the Third Proportional to 24,690 and 38,289

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Solution

The third proportional to 24,690 and 38,289 is: 59,378.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,690 : 38,289 = 38,289 : x
  2. Step 2: Convert to fraction form
    24,690/38,289 = 38,289/x
  3. Step 3: Cross multiply
    24,690x = 38,289 × 38,289
  4. Step 4: Simplify right side
    24,690x = 1,466,047,521
  5. Step 5: Solve for x
    x = 1,466,047,521/24,690
  6. Step 6: Final answer
    x = 59,378.19

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.