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Finding the Third Proportional to 5,680 and 12,448

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Solution

The third proportional to 5,680 and 12,448 is: 27,280.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680 : 12,448 = 12,448 : x
  2. Step 2: Convert to fraction form
    5,680/12,448 = 12,448/x
  3. Step 3: Cross multiply
    5,680x = 12,448 × 12,448
  4. Step 4: Simplify right side
    5,680x = 154,952,704
  5. Step 5: Solve for x
    x = 154,952,704/5,680
  6. Step 6: Final answer
    x = 27,280.41

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.