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Finding the Fourth Proportional to 7,610.71, 11,410.70 and 2,926.79

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Solution

The fourth proportional to 7,610.71, 11,410.70 and 2,926.79 is: 4,388.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,610.71 : 11,410.70 = 2,926.79 : x
  2. Step 2: Convert to fraction form
    7,610.71/11,410.70 = 2,926.79/x
  3. Step 3: Cross multiply
    7,610.71x = 11,410.70 × 2,926.79
  4. Step 4: Simplify right side
    7,610.71x = 33,396,658.28
  5. Step 5: Solve for x
    x = 33,396,658.28/7,610.71
  6. Step 6: Final answer
    x = 4,388.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.