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Finding the Fourth Proportional to 3,673.55, 5,065.03 and 3,199.70

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Solution

The fourth proportional to 3,673.55, 5,065.03 and 3,199.70 is: 4,411.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,673.55 : 5,065.03 = 3,199.70 : x
  2. Step 2: Convert to fraction form
    3,673.55/5,065.03 = 3,199.70/x
  3. Step 3: Cross multiply
    3,673.55x = 5,065.03 × 3,199.70
  4. Step 4: Simplify right side
    3,673.55x = 16,206,593.15
  5. Step 5: Solve for x
    x = 16,206,593.15/3,673.55
  6. Step 6: Final answer
    x = 4,411.69

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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.