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Finding the Fourth Proportional to 6,613.90, 9,126.20 and 4,259.23

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Solution

The fourth proportional to 6,613.90, 9,126.20 and 4,259.23 is: 5,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.90 : 9,126.20 = 4,259.23 : x
  2. Step 2: Convert to fraction form
    6,613.90/9,126.20 = 4,259.23/x
  3. Step 3: Cross multiply
    6,613.90x = 9,126.20 × 4,259.23
  4. Step 4: Simplify right side
    6,613.90x = 38,870,584.83
  5. Step 5: Solve for x
    x = 38,870,584.83/6,613.90
  6. Step 6: Final answer
    x = 5,877.11

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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.