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Finding the Fourth Proportional to 57,645.38, 79,568.38 and 33,779.82

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Solution

The fourth proportional to 57,645.38, 79,568.38 and 33,779.82 is: 46,626.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,645.38 : 79,568.38 = 33,779.82 : x
  2. Step 2: Convert to fraction form
    57,645.38/79,568.38 = 33,779.82/x
  3. Step 3: Cross multiply
    57,645.38x = 79,568.38 × 33,779.82
  4. Step 4: Simplify right side
    57,645.38x = 2,687,805,554.09
  5. Step 5: Solve for x
    x = 2,687,805,554.09/57,645.38
  6. Step 6: Final answer
    x = 46,626.56

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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.