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Finding the Fourth Proportional to 5,687.24, 7,848.20 and 3,169.22

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Solution

The fourth proportional to 5,687.24, 7,848.20 and 3,169.22 is: 4,373.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.24 : 7,848.20 = 3,169.22 : x
  2. Step 2: Convert to fraction form
    5,687.24/7,848.20 = 3,169.22/x
  3. Step 3: Cross multiply
    5,687.24x = 7,848.20 × 3,169.22
  4. Step 4: Simplify right side
    5,687.24x = 24,872,672.40
  5. Step 5: Solve for x
    x = 24,872,672.40/5,687.24
  6. Step 6: Final answer
    x = 4,373.42

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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.