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Finding the Fourth Proportional to 3,970.92, 5,475.54 and 3,250.92

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Solution

The fourth proportional to 3,970.92, 5,475.54 and 3,250.92 is: 4,482.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.92 : 5,475.54 = 3,250.92 : x
  2. Step 2: Convert to fraction form
    3,970.92/5,475.54 = 3,250.92/x
  3. Step 3: Cross multiply
    3,970.92x = 5,475.54 × 3,250.92
  4. Step 4: Simplify right side
    3,970.92x = 17,800,542.50
  5. Step 5: Solve for x
    x = 17,800,542.50/3,970.92
  6. Step 6: Final answer
    x = 4,482.73

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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.