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Finding the Fourth Proportional to 3,925.94, 5,414.18 and 2,964.87

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Solution

The fourth proportional to 3,925.94, 5,414.18 and 2,964.87 is: 4,088.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.94 : 5,414.18 = 2,964.87 : x
  2. Step 2: Convert to fraction form
    3,925.94/5,414.18 = 2,964.87/x
  3. Step 3: Cross multiply
    3,925.94x = 5,414.18 × 2,964.87
  4. Step 4: Simplify right side
    3,925.94x = 16,052,325.03
  5. Step 5: Solve for x
    x = 16,052,325.03/3,925.94
  6. Step 6: Final answer
    x = 4,088.79

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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.