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Finding the Fourth Proportional to 8,791.93, 13,188.04 and 2,868.80

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Solution

The fourth proportional to 8,791.93, 13,188.04 and 2,868.80 is: 4,303.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.93 : 13,188.04 = 2,868.80 : x
  2. Step 2: Convert to fraction form
    8,791.93/13,188.04 = 2,868.80/x
  3. Step 3: Cross multiply
    8,791.93x = 13,188.04 × 2,868.80
  4. Step 4: Simplify right side
    8,791.93x = 37,833,849.15
  5. Step 5: Solve for x
    x = 37,833,849.15/8,791.93
  6. Step 6: Final answer
    x = 4,303.25

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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.