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Finding the Fourth Proportional to 3,866.42, 5,335.67 and 2,374.32

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Solution

The fourth proportional to 3,866.42, 5,335.67 and 2,374.32 is: 3,276.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.42 : 5,335.67 = 2,374.32 : x
  2. Step 2: Convert to fraction form
    3,866.42/5,335.67 = 2,374.32/x
  3. Step 3: Cross multiply
    3,866.42x = 5,335.67 × 2,374.32
  4. Step 4: Simplify right side
    3,866.42x = 12,668,570.57
  5. Step 5: Solve for x
    x = 12,668,570.57/3,866.42
  6. Step 6: Final answer
    x = 3,276.57

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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.