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Finding the Fourth Proportional to 2,032.75, 3,049.40 and 878.77

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Solution

The fourth proportional to 2,032.75, 3,049.40 and 878.77 is: 1,318.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,032.75 : 3,049.40 = 878.77 : x
  2. Step 2: Convert to fraction form
    2,032.75/3,049.40 = 878.77/x
  3. Step 3: Cross multiply
    2,032.75x = 3,049.40 × 878.77
  4. Step 4: Simplify right side
    2,032.75x = 2,679,721.24
  5. Step 5: Solve for x
    x = 2,679,721.24/2,032.75
  6. Step 6: Final answer
    x = 1,318.27

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1.5x scale

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.