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Finding the Fourth Proportional to 4,691.99, 7,040.72 and 2,613.74

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Solution

The fourth proportional to 4,691.99, 7,040.72 and 2,613.74 is: 3,922.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,691.99 : 7,040.72 = 2,613.74 : x
  2. Step 2: Convert to fraction form
    4,691.99/7,040.72 = 2,613.74/x
  3. Step 3: Cross multiply
    4,691.99x = 7,040.72 × 2,613.74
  4. Step 4: Simplify right side
    4,691.99x = 18,402,582.82
  5. Step 5: Solve for x
    x = 18,402,582.82/4,691.99
  6. Step 6: Final answer
    x = 3,922.13

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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.