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Finding the Third Proportional to 5,484 and 8,438

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Solution

The third proportional to 5,484 and 8,438 is: 12,983.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,484 : 8,438 = 8,438 : x
  2. Step 2: Convert to fraction form
    5,484/8,438 = 8,438/x
  3. Step 3: Cross multiply
    5,484x = 8,438 × 8,438
  4. Step 4: Simplify right side
    5,484x = 71,199,844
  5. Step 5: Solve for x
    x = 71,199,844/5,484
  6. Step 6: Final answer
    x = 12,983.20

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.