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Finding the Third Proportional to 15,608.25 and 34,920

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Solution

The third proportional to 15,608.25 and 34,920 is: 78,125.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,608.25 : 34,920 = 34,920 : x
  2. Step 2: Convert to fraction form
    15,608.25/34,920 = 34,920/x
  3. Step 3: Cross multiply
    15,608.25x = 34,920 × 34,920
  4. Step 4: Simplify right side
    15,608.25x = 1,219,406,400
  5. Step 5: Solve for x
    x = 1,219,406,400/15,608.25
  6. Step 6: Final answer
    x = 78,125.76

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Why These Related Problems?

These problems maintain the same ratio (2.24) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.