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Finding the Fourth Proportional to 57,886.75, 79,878.96 and 32,391.80

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Solution

The fourth proportional to 57,886.75, 79,878.96 and 32,391.80 is: 44,698.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,886.75 : 79,878.96 = 32,391.80 : x
  2. Step 2: Convert to fraction form
    57,886.75/79,878.96 = 32,391.80/x
  3. Step 3: Cross multiply
    57,886.75x = 79,878.96 × 32,391.80
  4. Step 4: Simplify right side
    57,886.75x = 2,587,423,196.68
  5. Step 5: Solve for x
    x = 2,587,423,196.68/57,886.75
  6. Step 6: Final answer
    x = 44,698.02

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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.