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Finding the Fourth Proportional to 3,866.74, 5,340.52 and 2,546.34

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Solution

The fourth proportional to 3,866.74, 5,340.52 and 2,546.34 is: 3,516.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.74 : 5,340.52 = 2,546.34 : x
  2. Step 2: Convert to fraction form
    3,866.74/5,340.52 = 2,546.34/x
  3. Step 3: Cross multiply
    3,866.74x = 5,340.52 × 2,546.34
  4. Step 4: Simplify right side
    3,866.74x = 13,598,779.70
  5. Step 5: Solve for x
    x = 13,598,779.70/3,866.74
  6. Step 6: Final answer
    x = 3,516.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.