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Finding the Third Proportional to 15,947.50 and 34,918

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Solution

The third proportional to 15,947.50 and 34,918 is: 76,455.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,947.50 : 34,918 = 34,918 : x
  2. Step 2: Convert to fraction form
    15,947.50/34,918 = 34,918/x
  3. Step 3: Cross multiply
    15,947.50x = 34,918 × 34,918
  4. Step 4: Simplify right side
    15,947.50x = 1,219,266,724
  5. Step 5: Solve for x
    x = 1,219,266,724/15,947.50
  6. Step 6: Final answer
    x = 76,455.04

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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.