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Finding the Fourth Proportional to 8,957.92, 13,453.65 and 8,226.52

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Solution

The fourth proportional to 8,957.92, 13,453.65 and 8,226.52 is: 12,355.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.92 : 13,453.65 = 8,226.52 : x
  2. Step 2: Convert to fraction form
    8,957.92/13,453.65 = 8,226.52/x
  3. Step 3: Cross multiply
    8,957.92x = 13,453.65 × 8,226.52
  4. Step 4: Simplify right side
    8,957.92x = 110,676,720.80
  5. Step 5: Solve for x
    x = 110,676,720.80/8,957.92
  6. Step 6: Final answer
    x = 12,355.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.