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Finding the Fourth Proportional to 2,041.73, 3,064.04 and 872.55

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Solution

The fourth proportional to 2,041.73, 3,064.04 and 872.55 is: 1,309.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,041.73 : 3,064.04 = 872.55 : x
  2. Step 2: Convert to fraction form
    2,041.73/3,064.04 = 872.55/x
  3. Step 3: Cross multiply
    2,041.73x = 3,064.04 × 872.55
  4. Step 4: Simplify right side
    2,041.73x = 2,673,523.74
  5. Step 5: Solve for x
    x = 2,673,523.74/2,041.73
  6. Step 6: Final answer
    x = 1,309.44

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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.