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Finding the Third Proportional to 31,182.13 and 68,403.13

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Solution

The third proportional to 31,182.13 and 68,403.13 is: 150,053.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,182.13 : 68,403.13 = 68,403.13 : x
  2. Step 2: Convert to fraction form
    31,182.13/68,403.13 = 68,403.13/x
  3. Step 3: Cross multiply
    31,182.13x = 68,403.13 × 68,403.13
  4. Step 4: Simplify right side
    31,182.13x = 4,678,987,509.77
  5. Step 5: Solve for x
    x = 4,678,987,509.77/31,182.13
  6. Step 6: Final answer
    x = 150,053.52

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.