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Finding the Fourth Proportional to 3,803.68, 5,704.08 and 1,854.88

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Solution

The fourth proportional to 3,803.68, 5,704.08 and 1,854.88 is: 2,781.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,803.68 : 5,704.08 = 1,854.88 : x
  2. Step 2: Convert to fraction form
    3,803.68/5,704.08 = 1,854.88/x
  3. Step 3: Cross multiply
    3,803.68x = 5,704.08 × 1,854.88
  4. Step 4: Simplify right side
    3,803.68x = 10,580,383.91
  5. Step 5: Solve for x
    x = 10,580,383.91/3,803.68
  6. Step 6: Final answer
    x = 2,781.62

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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.