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Finding the Third Proportional to 34,428 and 54,612

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Solution

The third proportional to 34,428 and 54,612 is: 86,629.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,428 : 54,612 = 54,612 : x
  2. Step 2: Convert to fraction form
    34,428/54,612 = 54,612/x
  3. Step 3: Cross multiply
    34,428x = 54,612 × 54,612
  4. Step 4: Simplify right side
    34,428x = 2,982,470,544
  5. Step 5: Solve for x
    x = 2,982,470,544/34,428
  6. Step 6: Final answer
    x = 86,629.21

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.