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Finding the Third Proportional to 3,098.74 and 4,720.75

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Solution

The third proportional to 3,098.74 and 4,720.75 is: 7,191.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.74 : 4,720.75 = 4,720.75 : x
  2. Step 2: Convert to fraction form
    3,098.74/4,720.75 = 4,720.75/x
  3. Step 3: Cross multiply
    3,098.74x = 4,720.75 × 4,720.75
  4. Step 4: Simplify right side
    3,098.74x = 22,285,443.68
  5. Step 5: Solve for x
    x = 22,285,443.68/3,098.74
  6. Step 6: Final answer
    x = 7,191.77

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.