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Finding the Fourth Proportional to 3,972.81, 5,482.49 and 2,204.42

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Solution

The fourth proportional to 3,972.81, 5,482.49 and 2,204.42 is: 3,042.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.81 : 5,482.49 = 2,204.42 : x
  2. Step 2: Convert to fraction form
    3,972.81/5,482.49 = 2,204.42/x
  3. Step 3: Cross multiply
    3,972.81x = 5,482.49 × 2,204.42
  4. Step 4: Simplify right side
    3,972.81x = 12,085,710.61
  5. Step 5: Solve for x
    x = 12,085,710.61/3,972.81
  6. Step 6: Final answer
    x = 3,042.11

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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.