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Finding the Third Proportional to 499.78 and 1,167.05

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Solution

The third proportional to 499.78 and 1,167.05 is: 2,725.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.78 : 1,167.05 = 1,167.05 : x
  2. Step 2: Convert to fraction form
    499.78/1,167.05 = 1,167.05/x
  3. Step 3: Cross multiply
    499.78x = 1,167.05 × 1,167.05
  4. Step 4: Simplify right side
    499.78x = 1,361,998.41
  5. Step 5: Solve for x
    x = 1,361,998.41/499.78
  6. Step 6: Final answer
    x = 2,725.19

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.