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Finding the Fourth Proportional to 8,751.76, 12,079.93 and 4,976.96

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Solution

The fourth proportional to 8,751.76, 12,079.93 and 4,976.96 is: 6,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.76 : 12,079.93 = 4,976.96 : x
  2. Step 2: Convert to fraction form
    8,751.76/12,079.93 = 4,976.96/x
  3. Step 3: Cross multiply
    8,751.76x = 12,079.93 × 4,976.96
  4. Step 4: Simplify right side
    8,751.76x = 60,121,354.83
  5. Step 5: Solve for x
    x = 60,121,354.83/8,751.76
  6. Step 6: Final answer
    x = 6,869.63

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1.5x scale

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.