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Finding the Fourth Proportional to 8,879.22, 12,258.14 and 5,524.91

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Solution

The fourth proportional to 8,879.22, 12,258.14 and 5,524.91 is: 7,627.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.22 : 12,258.14 = 5,524.91 : x
  2. Step 2: Convert to fraction form
    8,879.22/12,258.14 = 5,524.91/x
  3. Step 3: Cross multiply
    8,879.22x = 12,258.14 × 5,524.91
  4. Step 4: Simplify right side
    8,879.22x = 67,725,077.32
  5. Step 5: Solve for x
    x = 67,725,077.32/8,879.22
  6. Step 6: Final answer
    x = 7,627.37

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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.