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Finding the Fourth Proportional to 3,174.64, 4,760.56 and 1,859.68

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Solution

The fourth proportional to 3,174.64, 4,760.56 and 1,859.68 is: 2,788.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.64 : 4,760.56 = 1,859.68 : x
  2. Step 2: Convert to fraction form
    3,174.64/4,760.56 = 1,859.68/x
  3. Step 3: Cross multiply
    3,174.64x = 4,760.56 × 1,859.68
  4. Step 4: Simplify right side
    3,174.64x = 8,853,118.22
  5. Step 5: Solve for x
    x = 8,853,118.22/3,174.64
  6. Step 6: Final answer
    x = 2,788.70

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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.