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Finding the Third Proportional to 4,478 and 9,952

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Solution

The third proportional to 4,478 and 9,952 is: 22,117.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478 : 9,952 = 9,952 : x
  2. Step 2: Convert to fraction form
    4,478/9,952 = 9,952/x
  3. Step 3: Cross multiply
    4,478x = 9,952 × 9,952
  4. Step 4: Simplify right side
    4,478x = 99,042,304
  5. Step 5: Solve for x
    x = 99,042,304/4,478
  6. Step 6: Final answer
    x = 22,117.53

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.