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Finding the Fourth Proportional to 8,878.05, 12,251.84 and 4,899.33

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Solution

The fourth proportional to 8,878.05, 12,251.84 and 4,899.33 is: 6,761.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.05 : 12,251.84 = 4,899.33 : x
  2. Step 2: Convert to fraction form
    8,878.05/12,251.84 = 4,899.33/x
  3. Step 3: Cross multiply
    8,878.05x = 12,251.84 × 4,899.33
  4. Step 4: Simplify right side
    8,878.05x = 60,025,782.77
  5. Step 5: Solve for x
    x = 60,025,782.77/8,878.05
  6. Step 6: Final answer
    x = 6,761.14

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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.