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Finding the Fourth Proportional to 3,952.68, 5,453.88 and 2,274.12

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Solution

The fourth proportional to 3,952.68, 5,453.88 and 2,274.12 is: 3,137.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.68 : 5,453.88 = 2,274.12 : x
  2. Step 2: Convert to fraction form
    3,952.68/5,453.88 = 2,274.12/x
  3. Step 3: Cross multiply
    3,952.68x = 5,453.88 × 2,274.12
  4. Step 4: Simplify right side
    3,952.68x = 12,402,777.59
  5. Step 5: Solve for x
    x = 12,402,777.59/3,952.68
  6. Step 6: Final answer
    x = 3,137.81

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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.