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Finding the Fourth Proportional to 57,489.59, 79,334.84 and 31,995.95

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Solution

The fourth proportional to 57,489.59, 79,334.84 and 31,995.95 is: 44,153.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,489.59 : 79,334.84 = 31,995.95 : x
  2. Step 2: Convert to fraction form
    57,489.59/79,334.84 = 31,995.95/x
  3. Step 3: Cross multiply
    57,489.59x = 79,334.84 × 31,995.95
  4. Step 4: Simplify right side
    57,489.59x = 2,538,393,097.23
  5. Step 5: Solve for x
    x = 2,538,393,097.23/57,489.59
  6. Step 6: Final answer
    x = 44,153.96

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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.