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Finding the Fourth Proportional to 36,511.16, 54,766.80 and 8,809.16

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Solution

The fourth proportional to 36,511.16, 54,766.80 and 8,809.16 is: 13,213.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,511.16 : 54,766.80 = 8,809.16 : x
  2. Step 2: Convert to fraction form
    36,511.16/54,766.80 = 8,809.16/x
  3. Step 3: Cross multiply
    36,511.16x = 54,766.80 × 8,809.16
  4. Step 4: Simplify right side
    36,511.16x = 482,449,503.89
  5. Step 5: Solve for x
    x = 482,449,503.89/36,511.16
  6. Step 6: Final answer
    x = 13,213.75

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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.