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Finding the Fourth Proportional to 3,865.67, 5,798.92 and 1,232.55

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Solution

The fourth proportional to 3,865.67, 5,798.92 and 1,232.55 is: 1,848.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.67 : 5,798.92 = 1,232.55 : x
  2. Step 2: Convert to fraction form
    3,865.67/5,798.92 = 1,232.55/x
  3. Step 3: Cross multiply
    3,865.67x = 5,798.92 × 1,232.55
  4. Step 4: Simplify right side
    3,865.67x = 7,147,455.76
  5. Step 5: Solve for x
    x = 7,147,455.76/3,865.67
  6. Step 6: Final answer
    x = 1,848.96

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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.