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Finding the Third Proportional to 15,520 and 24,020

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Solution

The third proportional to 15,520 and 24,020 is: 37,175.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,520 : 24,020 = 24,020 : x
  2. Step 2: Convert to fraction form
    15,520/24,020 = 24,020/x
  3. Step 3: Cross multiply
    15,520x = 24,020 × 24,020
  4. Step 4: Simplify right side
    15,520x = 576,960,400
  5. Step 5: Solve for x
    x = 576,960,400/15,520
  6. Step 6: Final answer
    x = 37,175.28

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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.