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Finding the Fourth Proportional to 5,753.28, 8,633.28 and 5,388.80

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Solution

The fourth proportional to 5,753.28, 8,633.28 and 5,388.80 is: 8,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,753.28 : 8,633.28 = 5,388.80 : x
  2. Step 2: Convert to fraction form
    5,753.28/8,633.28 = 5,388.80/x
  3. Step 3: Cross multiply
    5,753.28x = 8,633.28 × 5,388.80
  4. Step 4: Simplify right side
    5,753.28x = 46,523,019.26
  5. Step 5: Solve for x
    x = 46,523,019.26/5,753.28
  6. Step 6: Final answer
    x = 8,086.35

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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.