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Finding the Fourth Proportional to 7,610.83, 11,417.16 and 2,679.45

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Solution

The fourth proportional to 7,610.83, 11,417.16 and 2,679.45 is: 4,019.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,610.83 : 11,417.16 = 2,679.45 : x
  2. Step 2: Convert to fraction form
    7,610.83/11,417.16 = 2,679.45/x
  3. Step 3: Cross multiply
    7,610.83x = 11,417.16 × 2,679.45
  4. Step 4: Simplify right side
    7,610.83x = 30,591,709.36
  5. Step 5: Solve for x
    x = 30,591,709.36/7,610.83
  6. Step 6: Final answer
    x = 4,019.50

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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.