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Finding the Fourth Proportional to 3,599.92, 5,391.50 and 3,475.20

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Solution

The fourth proportional to 3,599.92, 5,391.50 and 3,475.20 is: 5,204.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,599.92 : 5,391.50 = 3,475.20 : x
  2. Step 2: Convert to fraction form
    3,599.92/5,391.50 = 3,475.20/x
  3. Step 3: Cross multiply
    3,599.92x = 5,391.50 × 3,475.20
  4. Step 4: Simplify right side
    3,599.92x = 18,736,549.49
  5. Step 5: Solve for x
    x = 18,736,549.49/3,599.92
  6. Step 6: Final answer
    x = 5,204.72

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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.