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Finding the Fourth Proportional to 7,391.95, 11,091.17 and 3,881.14

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Solution

The fourth proportional to 7,391.95, 11,091.17 and 3,881.14 is: 5,823.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,391.95 : 11,091.17 = 3,881.14 : x
  2. Step 2: Convert to fraction form
    7,391.95/11,091.17 = 3,881.14/x
  3. Step 3: Cross multiply
    7,391.95x = 11,091.17 × 3,881.14
  4. Step 4: Simplify right side
    7,391.95x = 43,046,308.67
  5. Step 5: Solve for x
    x = 43,046,308.67/7,391.95
  6. Step 6: Final answer
    x = 5,823.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.