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Finding the Fourth Proportional to 3,631.05, 5,008.46 and 2,883.82

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Solution

The fourth proportional to 3,631.05, 5,008.46 and 2,883.82 is: 3,977.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.05 : 5,008.46 = 2,883.82 : x
  2. Step 2: Convert to fraction form
    3,631.05/5,008.46 = 2,883.82/x
  3. Step 3: Cross multiply
    3,631.05x = 5,008.46 × 2,883.82
  4. Step 4: Simplify right side
    3,631.05x = 14,443,482.70
  5. Step 5: Solve for x
    x = 14,443,482.70/3,631.05
  6. Step 6: Final answer
    x = 3,977.78

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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.