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Finding the Fourth Proportional to 2,864.88, 4,291.83 and 1,938.84

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Solution

The fourth proportional to 2,864.88, 4,291.83 and 1,938.84 is: 2,904.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.88 : 4,291.83 = 1,938.84 : x
  2. Step 2: Convert to fraction form
    2,864.88/4,291.83 = 1,938.84/x
  3. Step 3: Cross multiply
    2,864.88x = 4,291.83 × 1,938.84
  4. Step 4: Simplify right side
    2,864.88x = 8,321,171.68
  5. Step 5: Solve for x
    x = 8,321,171.68/2,864.88
  6. Step 6: Final answer
    x = 2,904.54

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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.