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Finding the Third Proportional to 5,531 and 8,565

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Solution

The third proportional to 5,531 and 8,565 is: 13,263.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531 : 8,565 = 8,565 : x
  2. Step 2: Convert to fraction form
    5,531/8,565 = 8,565/x
  3. Step 3: Cross multiply
    5,531x = 8,565 × 8,565
  4. Step 4: Simplify right side
    5,531x = 73,359,225
  5. Step 5: Solve for x
    x = 73,359,225/5,531
  6. Step 6: Final answer
    x = 13,263.28

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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.