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Finding the Fourth Proportional to 2,587.66, 3,879.36 and 1,475.83

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Solution

The fourth proportional to 2,587.66, 3,879.36 and 1,475.83 is: 2,212.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.66 : 3,879.36 = 1,475.83 : x
  2. Step 2: Convert to fraction form
    2,587.66/3,879.36 = 1,475.83/x
  3. Step 3: Cross multiply
    2,587.66x = 3,879.36 × 1,475.83
  4. Step 4: Simplify right side
    2,587.66x = 5,725,275.87
  5. Step 5: Solve for x
    x = 5,725,275.87/2,587.66
  6. Step 6: Final answer
    x = 2,212.53

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.