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Finding the Third Proportional to 7,180.13 and 10,519.88

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Solution

The third proportional to 7,180.13 and 10,519.88 is: 15,413.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.13 : 10,519.88 = 10,519.88 : x
  2. Step 2: Convert to fraction form
    7,180.13/10,519.88 = 10,519.88/x
  3. Step 3: Cross multiply
    7,180.13x = 10,519.88 × 10,519.88
  4. Step 4: Simplify right side
    7,180.13x = 110,667,770.02
  5. Step 5: Solve for x
    x = 110,667,770.02/7,180.13
  6. Step 6: Final answer
    x = 15,413.07

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.