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Finding the Fourth Proportional to 7,549.76, 11,321.76 and 3,600.32

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Solution

The fourth proportional to 7,549.76, 11,321.76 and 3,600.32 is: 5,399.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,549.76 : 11,321.76 = 3,600.32 : x
  2. Step 2: Convert to fraction form
    7,549.76/11,321.76 = 3,600.32/x
  3. Step 3: Cross multiply
    7,549.76x = 11,321.76 × 3,600.32
  4. Step 4: Simplify right side
    7,549.76x = 40,761,958.96
  5. Step 5: Solve for x
    x = 40,761,958.96/7,549.76
  6. Step 6: Final answer
    x = 5,399.11

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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.