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Finding the Fourth Proportional to 1,741.47, 2,613.24 and 767.67

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Solution

The fourth proportional to 1,741.47, 2,613.24 and 767.67 is: 1,151.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,741.47 : 2,613.24 = 767.67 : x
  2. Step 2: Convert to fraction form
    1,741.47/2,613.24 = 767.67/x
  3. Step 3: Cross multiply
    1,741.47x = 2,613.24 × 767.67
  4. Step 4: Simplify right side
    1,741.47x = 2,006,105.95
  5. Step 5: Solve for x
    x = 2,006,105.95/1,741.47
  6. Step 6: Final answer
    x = 1,151.96

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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.