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Finding the Third Proportional to 5,672 and 12,478

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Solution

The third proportional to 5,672 and 12,478 is: 27,450.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,672 : 12,478 = 12,478 : x
  2. Step 2: Convert to fraction form
    5,672/12,478 = 12,478/x
  3. Step 3: Cross multiply
    5,672x = 12,478 × 12,478
  4. Step 4: Simplify right side
    5,672x = 155,700,484
  5. Step 5: Solve for x
    x = 155,700,484/5,672
  6. Step 6: Final answer
    x = 27,450.72

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.