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Finding the Third Proportional to 2,918.53 and 4,377.80

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Solution

The third proportional to 2,918.53 and 4,377.80 is: 6,566.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.53 : 4,377.80 = 4,377.80 : x
  2. Step 2: Convert to fraction form
    2,918.53/4,377.80 = 4,377.80/x
  3. Step 3: Cross multiply
    2,918.53x = 4,377.80 × 4,377.80
  4. Step 4: Simplify right side
    2,918.53x = 19,165,105.48
  5. Step 5: Solve for x
    x = 19,165,105.48/2,918.53
  6. Step 6: Final answer
    x = 6,566.70

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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.