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Finding the Third Proportional to 15,690.75 and 34,491.75

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Solution

The third proportional to 15,690.75 and 34,491.75 is: 75,820.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690.75 : 34,491.75 = 34,491.75 : x
  2. Step 2: Convert to fraction form
    15,690.75/34,491.75 = 34,491.75/x
  3. Step 3: Cross multiply
    15,690.75x = 34,491.75 × 34,491.75
  4. Step 4: Simplify right side
    15,690.75x = 1,189,680,818.06
  5. Step 5: Solve for x
    x = 1,189,680,818.06/15,690.75
  6. Step 6: Final answer
    x = 75,820.52

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.