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Finding the Third Proportional to 3,164.81 and 4,918.13

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Solution

The third proportional to 3,164.81 and 4,918.13 is: 7,642.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,164.81 : 4,918.13 = 4,918.13 : x
  2. Step 2: Convert to fraction form
    3,164.81/4,918.13 = 4,918.13/x
  3. Step 3: Cross multiply
    3,164.81x = 4,918.13 × 4,918.13
  4. Step 4: Simplify right side
    3,164.81x = 24,187,953.52
  5. Step 5: Solve for x
    x = 24,187,953.52/3,164.81
  6. Step 6: Final answer
    x = 7,642.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.