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Finding the Third Proportional to 5,339 and 9,862

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Solution

The third proportional to 5,339 and 9,862 is: 18,216.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339 : 9,862 = 9,862 : x
  2. Step 2: Convert to fraction form
    5,339/9,862 = 9,862/x
  3. Step 3: Cross multiply
    5,339x = 9,862 × 9,862
  4. Step 4: Simplify right side
    5,339x = 97,259,044
  5. Step 5: Solve for x
    x = 97,259,044/5,339
  6. Step 6: Final answer
    x = 18,216.72

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.