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Finding the Fourth Proportional to 5,416.88, 7,471.44 and 3,425.49

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Solution

The fourth proportional to 5,416.88, 7,471.44 and 3,425.49 is: 4,724.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.88 : 7,471.44 = 3,425.49 : x
  2. Step 2: Convert to fraction form
    5,416.88/7,471.44 = 3,425.49/x
  3. Step 3: Cross multiply
    5,416.88x = 7,471.44 × 3,425.49
  4. Step 4: Simplify right side
    5,416.88x = 25,593,343.01
  5. Step 5: Solve for x
    x = 25,593,343.01/5,416.88
  6. Step 6: Final answer
    x = 4,724.74

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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.