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Finding the Fourth Proportional to 8,761.68, 12,091.14 and 5,035.68

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Solution

The fourth proportional to 8,761.68, 12,091.14 and 5,035.68 is: 6,949.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.68 : 12,091.14 = 5,035.68 : x
  2. Step 2: Convert to fraction form
    8,761.68/12,091.14 = 5,035.68/x
  3. Step 3: Cross multiply
    8,761.68x = 12,091.14 × 5,035.68
  4. Step 4: Simplify right side
    8,761.68x = 60,887,111.88
  5. Step 5: Solve for x
    x = 60,887,111.88/8,761.68
  6. Step 6: Final answer
    x = 6,949.25

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Double scale
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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.