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Finding the Fourth Proportional to 8,751.29, 12,077.07 and 4,974.61

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Solution

The fourth proportional to 8,751.29, 12,077.07 and 4,974.61 is: 6,865.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.29 : 12,077.07 = 4,974.61 : x
  2. Step 2: Convert to fraction form
    8,751.29/12,077.07 = 4,974.61/x
  3. Step 3: Cross multiply
    8,751.29x = 12,077.07 × 4,974.61
  4. Step 4: Simplify right side
    8,751.29x = 60,078,683.00
  5. Step 5: Solve for x
    x = 60,078,683.00/8,751.29
  6. Step 6: Final answer
    x = 6,865.13

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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.