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Finding the Third Proportional to 1,540.13 and 4,186.13

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Solution

The third proportional to 1,540.13 and 4,186.13 is: 11,378.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.13 : 4,186.13 = 4,186.13 : x
  2. Step 2: Convert to fraction form
    1,540.13/4,186.13 = 4,186.13/x
  3. Step 3: Cross multiply
    1,540.13x = 4,186.13 × 4,186.13
  4. Step 4: Simplify right side
    1,540.13x = 17,523,642.52
  5. Step 5: Solve for x
    x = 17,523,642.52/1,540.13
  6. Step 6: Final answer
    x = 11,378.07

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Why These Related Problems?

These problems maintain the same ratio (2.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.