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Finding the Fourth Proportional to 7,352.89, 10,147.17 and 3,995.67

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Solution

The fourth proportional to 7,352.89, 10,147.17 and 3,995.67 is: 5,514.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,352.89 : 10,147.17 = 3,995.67 : x
  2. Step 2: Convert to fraction form
    7,352.89/10,147.17 = 3,995.67/x
  3. Step 3: Cross multiply
    7,352.89x = 10,147.17 × 3,995.67
  4. Step 4: Simplify right side
    7,352.89x = 40,544,742.75
  5. Step 5: Solve for x
    x = 40,544,742.75/7,352.89
  6. Step 6: Final answer
    x = 5,514.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.