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Finding the Fourth Proportional to 6,224.43, 8,590.71 and 3,986.19

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Solution

The fourth proportional to 6,224.43, 8,590.71 and 3,986.19 is: 5,501.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,224.43 : 8,590.71 = 3,986.19 : x
  2. Step 2: Convert to fraction form
    6,224.43/8,590.71 = 3,986.19/x
  3. Step 3: Cross multiply
    6,224.43x = 8,590.71 × 3,986.19
  4. Step 4: Simplify right side
    6,224.43x = 34,244,202.29
  5. Step 5: Solve for x
    x = 34,244,202.29/6,224.43
  6. Step 6: Final answer
    x = 5,501.58

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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.