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Finding the Fourth Proportional to 57,691.04, 79,612.47 and 32,540.54

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Solution

The fourth proportional to 57,691.04, 79,612.47 and 32,540.54 is: 44,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,691.04 : 79,612.47 = 32,540.54 : x
  2. Step 2: Convert to fraction form
    57,691.04/79,612.47 = 32,540.54/x
  3. Step 3: Cross multiply
    57,691.04x = 79,612.47 × 32,540.54
  4. Step 4: Simplify right side
    57,691.04x = 2,590,632,366.47
  5. Step 5: Solve for x
    x = 2,590,632,366.47/57,691.04
  6. Step 6: Final answer
    x = 44,905.28

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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.