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Finding the Fourth Proportional to 57,366.92, 79,165.32 and 31,873.40

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Solution

The fourth proportional to 57,366.92, 79,165.32 and 31,873.40 is: 43,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,366.92 : 79,165.32 = 31,873.40 : x
  2. Step 2: Convert to fraction form
    57,366.92/79,165.32 = 31,873.40/x
  3. Step 3: Cross multiply
    57,366.92x = 79,165.32 × 31,873.40
  4. Step 4: Simplify right side
    57,366.92x = 2,523,267,910.49
  5. Step 5: Solve for x
    x = 2,523,267,910.49/57,366.92
  6. Step 6: Final answer
    x = 43,984.72

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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.