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Finding the Third Proportional to 34,315 and 51,555

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Solution

The third proportional to 34,315 and 51,555 is: 77,456.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,315 : 51,555 = 51,555 : x
  2. Step 2: Convert to fraction form
    34,315/51,555 = 51,555/x
  3. Step 3: Cross multiply
    34,315x = 51,555 × 51,555
  4. Step 4: Simplify right side
    34,315x = 2,657,918,025
  5. Step 5: Solve for x
    x = 2,657,918,025/34,315
  6. Step 6: Final answer
    x = 77,456.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.