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Finding the Fourth Proportional to 8,858.92, 12,226 and 6,341.44

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Solution

The fourth proportional to 8,858.92, 12,226 and 6,341.44 is: 8,751.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.92 : 12,226 = 6,341.44 : x
  2. Step 2: Convert to fraction form
    8,858.92/12,226 = 6,341.44/x
  3. Step 3: Cross multiply
    8,858.92x = 12,226 × 6,341.44
  4. Step 4: Simplify right side
    8,858.92x = 77,530,445.44
  5. Step 5: Solve for x
    x = 77,530,445.44/8,858.92
  6. Step 6: Final answer
    x = 8,751.68

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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.