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Finding the Fourth Proportional to 6,240.68, 8,613.26 and 3,722.96

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Solution

The fourth proportional to 6,240.68, 8,613.26 and 3,722.96 is: 5,138.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.68 : 8,613.26 = 3,722.96 : x
  2. Step 2: Convert to fraction form
    6,240.68/8,613.26 = 3,722.96/x
  3. Step 3: Cross multiply
    6,240.68x = 8,613.26 × 3,722.96
  4. Step 4: Simplify right side
    6,240.68x = 32,066,822.45
  5. Step 5: Solve for x
    x = 32,066,822.45/6,240.68
  6. Step 6: Final answer
    x = 5,138.35

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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.