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Finding the Fourth Proportional to 8,879.67, 12,253.41 and 4,899.96

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Solution

The fourth proportional to 8,879.67, 12,253.41 and 4,899.96 is: 6,761.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.67 : 12,253.41 = 4,899.96 : x
  2. Step 2: Convert to fraction form
    8,879.67/12,253.41 = 4,899.96/x
  3. Step 3: Cross multiply
    8,879.67x = 12,253.41 × 4,899.96
  4. Step 4: Simplify right side
    8,879.67x = 60,041,218.86
  5. Step 5: Solve for x
    x = 60,041,218.86/8,879.67
  6. Step 6: Final answer
    x = 6,761.65

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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.