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Finding the Fourth Proportional to 2,529.64, 3,793.72 and 885.88

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Solution

The fourth proportional to 2,529.64, 3,793.72 and 885.88 is: 1,328.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,529.64 : 3,793.72 = 885.88 : x
  2. Step 2: Convert to fraction form
    2,529.64/3,793.72 = 885.88/x
  3. Step 3: Cross multiply
    2,529.64x = 3,793.72 × 885.88
  4. Step 4: Simplify right side
    2,529.64x = 3,360,780.67
  5. Step 5: Solve for x
    x = 3,360,780.67/2,529.64
  6. Step 6: Final answer
    x = 1,328.56

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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.