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Finding the Third Proportional to 9,811.13 and 19,143

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Solution

The third proportional to 9,811.13 and 19,143 is: 37,350.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,811.13 : 19,143 = 19,143 : x
  2. Step 2: Convert to fraction form
    9,811.13/19,143 = 19,143/x
  3. Step 3: Cross multiply
    9,811.13x = 19,143 × 19,143
  4. Step 4: Simplify right side
    9,811.13x = 366,454,449
  5. Step 5: Solve for x
    x = 366,454,449/9,811.13
  6. Step 6: Final answer
    x = 37,350.91

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.