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Finding the Third Proportional to 28,820 and 62,560

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Solution

The third proportional to 28,820 and 62,560 is: 135,799.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820 : 62,560 = 62,560 : x
  2. Step 2: Convert to fraction form
    28,820/62,560 = 62,560/x
  3. Step 3: Cross multiply
    28,820x = 62,560 × 62,560
  4. Step 4: Simplify right side
    28,820x = 3,913,753,600
  5. Step 5: Solve for x
    x = 3,913,753,600/28,820
  6. Step 6: Final answer
    x = 135,799.92

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.