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Finding the Fourth Proportional to 8,041.44, 11,990.85 and 7,505.22

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Solution

The fourth proportional to 8,041.44, 11,990.85 and 7,505.22 is: 11,191.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,041.44 : 11,990.85 = 7,505.22 : x
  2. Step 2: Convert to fraction form
    8,041.44/11,990.85 = 7,505.22/x
  3. Step 3: Cross multiply
    8,041.44x = 11,990.85 × 7,505.22
  4. Step 4: Simplify right side
    8,041.44x = 89,993,967.24
  5. Step 5: Solve for x
    x = 89,993,967.24/8,041.44
  6. Step 6: Final answer
    x = 11,191.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.