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Finding the Fourth Proportional to 3,791.73, 5,232.17 and 2,113.01

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Solution

The fourth proportional to 3,791.73, 5,232.17 and 2,113.01 is: 2,915.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.73 : 5,232.17 = 2,113.01 : x
  2. Step 2: Convert to fraction form
    3,791.73/5,232.17 = 2,113.01/x
  3. Step 3: Cross multiply
    3,791.73x = 5,232.17 × 2,113.01
  4. Step 4: Simplify right side
    3,791.73x = 11,055,590.81
  5. Step 5: Solve for x
    x = 11,055,590.81/3,791.73
  6. Step 6: Final answer
    x = 2,915.71

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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.