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Finding the Fourth Proportional to 2,350.55, 3,532.20 and 1,255.70

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Solution

The fourth proportional to 2,350.55, 3,532.20 and 1,255.70 is: 1,886.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,350.55 : 3,532.20 = 1,255.70 : x
  2. Step 2: Convert to fraction form
    2,350.55/3,532.20 = 1,255.70/x
  3. Step 3: Cross multiply
    2,350.55x = 3,532.20 × 1,255.70
  4. Step 4: Simplify right side
    2,350.55x = 4,435,383.54
  5. Step 5: Solve for x
    x = 4,435,383.54/2,350.55
  6. Step 6: Final answer
    x = 1,886.96

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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.