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Finding the Fourth Proportional to 3,672.96, 5,065.92 and 2,974.08

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Solution

The fourth proportional to 3,672.96, 5,065.92 and 2,974.08 is: 4,101.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.96 : 5,065.92 = 2,974.08 : x
  2. Step 2: Convert to fraction form
    3,672.96/5,065.92 = 2,974.08/x
  3. Step 3: Cross multiply
    3,672.96x = 5,065.92 × 2,974.08
  4. Step 4: Simplify right side
    3,672.96x = 15,066,451.35
  5. Step 5: Solve for x
    x = 15,066,451.35/3,672.96
  6. Step 6: Final answer
    x = 4,101.99

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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.