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Finding the Fourth Proportional to 5,358.60, 8,040.60 and 2,438.82

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Solution

The fourth proportional to 5,358.60, 8,040.60 and 2,438.82 is: 3,659.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358.60 : 8,040.60 = 2,438.82 : x
  2. Step 2: Convert to fraction form
    5,358.60/8,040.60 = 2,438.82/x
  3. Step 3: Cross multiply
    5,358.60x = 8,040.60 × 2,438.82
  4. Step 4: Simplify right side
    5,358.60x = 19,609,576.09
  5. Step 5: Solve for x
    x = 19,609,576.09/5,358.60
  6. Step 6: Final answer
    x = 3,659.46

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1.5x scale

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.