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Finding the Third Proportional to 5,658 and 12,408

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Solution

The third proportional to 5,658 and 12,408 is: 27,210.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,658 : 12,408 = 12,408 : x
  2. Step 2: Convert to fraction form
    5,658/12,408 = 12,408/x
  3. Step 3: Cross multiply
    5,658x = 12,408 × 12,408
  4. Step 4: Simplify right side
    5,658x = 153,958,464
  5. Step 5: Solve for x
    x = 153,958,464/5,658
  6. Step 6: Final answer
    x = 27,210.76

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.