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Finding the Fourth Proportional to 5,613.99, 8,417.22 and 2,690.70

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Solution

The fourth proportional to 5,613.99, 8,417.22 and 2,690.70 is: 4,034.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.99 : 8,417.22 = 2,690.70 : x
  2. Step 2: Convert to fraction form
    5,613.99/8,417.22 = 2,690.70/x
  3. Step 3: Cross multiply
    5,613.99x = 8,417.22 × 2,690.70
  4. Step 4: Simplify right side
    5,613.99x = 22,648,213.85
  5. Step 5: Solve for x
    x = 22,648,213.85/5,613.99
  6. Step 6: Final answer
    x = 4,034.25

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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.