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Finding the Fourth Proportional to 8,758.93, 12,087.59 and 4,982.64

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Solution

The fourth proportional to 8,758.93, 12,087.59 and 4,982.64 is: 6,876.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.93 : 12,087.59 = 4,982.64 : x
  2. Step 2: Convert to fraction form
    8,758.93/12,087.59 = 4,982.64/x
  3. Step 3: Cross multiply
    8,758.93x = 12,087.59 × 4,982.64
  4. Step 4: Simplify right side
    8,758.93x = 60,228,109.44
  5. Step 5: Solve for x
    x = 60,228,109.44/8,758.93
  6. Step 6: Final answer
    x = 6,876.19

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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.