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Finding the Third Proportional to 5,429 and 8,468

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Solution

The third proportional to 5,429 and 8,468 is: 13,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429 : 8,468 = 8,468 : x
  2. Step 2: Convert to fraction form
    5,429/8,468 = 8,468/x
  3. Step 3: Cross multiply
    5,429x = 8,468 × 8,468
  4. Step 4: Simplify right side
    5,429x = 71,707,024
  5. Step 5: Solve for x
    x = 71,707,024/5,429
  6. Step 6: Final answer
    x = 13,208.15

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.