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Finding the Fourth Proportional to 2,041.11, 3,061.02 and 808.68

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Solution

The fourth proportional to 2,041.11, 3,061.02 and 808.68 is: 1,212.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,041.11 : 3,061.02 = 808.68 : x
  2. Step 2: Convert to fraction form
    2,041.11/3,061.02 = 808.68/x
  3. Step 3: Cross multiply
    2,041.11x = 3,061.02 × 808.68
  4. Step 4: Simplify right side
    2,041.11x = 2,475,385.65
  5. Step 5: Solve for x
    x = 2,475,385.65/2,041.11
  6. Step 6: Final answer
    x = 1,212.76

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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.