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Finding the Fourth Proportional to 9,080.95, 13,630.96 and 8,047.57

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Solution

The fourth proportional to 9,080.95, 13,630.96 and 8,047.57 is: 12,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,080.95 : 13,630.96 = 8,047.57 : x
  2. Step 2: Convert to fraction form
    9,080.95/13,630.96 = 8,047.57/x
  3. Step 3: Cross multiply
    9,080.95x = 13,630.96 × 8,047.57
  4. Step 4: Simplify right side
    9,080.95x = 109,695,996.37
  5. Step 5: Solve for x
    x = 109,695,996.37/9,080.95
  6. Step 6: Final answer
    x = 12,079.80

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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.