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Finding the Fourth Proportional to 5,918.13, 8,881.11 and 2,455.38

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Solution

The fourth proportional to 5,918.13, 8,881.11 and 2,455.38 is: 3,684.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.13 : 8,881.11 = 2,455.38 : x
  2. Step 2: Convert to fraction form
    5,918.13/8,881.11 = 2,455.38/x
  3. Step 3: Cross multiply
    5,918.13x = 8,881.11 × 2,455.38
  4. Step 4: Simplify right side
    5,918.13x = 21,806,499.87
  5. Step 5: Solve for x
    x = 21,806,499.87/5,918.13
  6. Step 6: Final answer
    x = 3,684.69

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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.