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Finding the Fourth Proportional to 3,799.79, 5,672.18 and 3,283.11

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Solution

The fourth proportional to 3,799.79, 5,672.18 and 3,283.11 is: 4,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,799.79 : 5,672.18 = 3,283.11 : x
  2. Step 2: Convert to fraction form
    3,799.79/5,672.18 = 3,283.11/x
  3. Step 3: Cross multiply
    3,799.79x = 5,672.18 × 3,283.11
  4. Step 4: Simplify right side
    3,799.79x = 18,622,374.46
  5. Step 5: Solve for x
    x = 18,622,374.46/3,799.79
  6. Step 6: Final answer
    x = 4,900.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.