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Finding the Fourth Proportional to 4,998.11, 7,502.22 and 2,078.46

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Solution

The fourth proportional to 4,998.11, 7,502.22 and 2,078.46 is: 3,119.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.11 : 7,502.22 = 2,078.46 : x
  2. Step 2: Convert to fraction form
    4,998.11/7,502.22 = 2,078.46/x
  3. Step 3: Cross multiply
    4,998.11x = 7,502.22 × 2,078.46
  4. Step 4: Simplify right side
    4,998.11x = 15,593,064.18
  5. Step 5: Solve for x
    x = 15,593,064.18/4,998.11
  6. Step 6: Final answer
    x = 3,119.80

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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.