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Finding the Fourth Proportional to 57,392.70, 79,188.96 and 34,731.12

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Solution

The fourth proportional to 57,392.70, 79,188.96 and 34,731.12 is: 47,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,392.70 : 79,188.96 = 34,731.12 : x
  2. Step 2: Convert to fraction form
    57,392.70/79,188.96 = 34,731.12/x
  3. Step 3: Cross multiply
    57,392.70x = 79,188.96 × 34,731.12
  4. Step 4: Simplify right side
    57,392.70x = 2,750,321,272.44
  5. Step 5: Solve for x
    x = 2,750,321,272.44/57,392.70
  6. Step 6: Final answer
    x = 47,921.10

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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.