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Finding the Fourth Proportional to 57,638.76, 79,537.86 and 32,148.87

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Solution

The fourth proportional to 57,638.76, 79,537.86 and 32,148.87 is: 44,363.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,638.76 : 79,537.86 = 32,148.87 : x
  2. Step 2: Convert to fraction form
    57,638.76/79,537.86 = 32,148.87/x
  3. Step 3: Cross multiply
    57,638.76x = 79,537.86 × 32,148.87
  4. Step 4: Simplify right side
    57,638.76x = 2,557,052,321.22
  5. Step 5: Solve for x
    x = 2,557,052,321.22/57,638.76
  6. Step 6: Final answer
    x = 44,363.42

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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.