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Finding the Fourth Proportional to 57,618, 79,512.84 and 32,468.40

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Solution

The fourth proportional to 57,618, 79,512.84 and 32,468.40 is: 44,806.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,618 : 79,512.84 = 32,468.40 : x
  2. Step 2: Convert to fraction form
    57,618/79,512.84 = 32,468.40/x
  3. Step 3: Cross multiply
    57,618x = 79,512.84 × 32,468.40
  4. Step 4: Simplify right side
    57,618x = 2,581,654,694.26
  5. Step 5: Solve for x
    x = 2,581,654,694.26/57,618
  6. Step 6: Final answer
    x = 44,806.39

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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.