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Finding the Fourth Proportional to 5,569.80, 8,355.75 and 2,238.31

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Solution

The fourth proportional to 5,569.80, 8,355.75 and 2,238.31 is: 3,357.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,569.80 : 8,355.75 = 2,238.31 : x
  2. Step 2: Convert to fraction form
    5,569.80/8,355.75 = 2,238.31/x
  3. Step 3: Cross multiply
    5,569.80x = 8,355.75 × 2,238.31
  4. Step 4: Simplify right side
    5,569.80x = 18,702,744.89
  5. Step 5: Solve for x
    x = 18,702,744.89/5,569.80
  6. Step 6: Final answer
    x = 3,357.88

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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.