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Finding the Fourth Proportional to 57,920.66, 79,911.93 and 32,423.28

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Solution

The fourth proportional to 57,920.66, 79,911.93 and 32,423.28 is: 44,733.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,920.66 : 79,911.93 = 32,423.28 : x
  2. Step 2: Convert to fraction form
    57,920.66/79,911.93 = 32,423.28/x
  3. Step 3: Cross multiply
    57,920.66x = 79,911.93 × 32,423.28
  4. Step 4: Simplify right side
    57,920.66x = 2,591,006,881.73
  5. Step 5: Solve for x
    x = 2,591,006,881.73/57,920.66
  6. Step 6: Final answer
    x = 44,733.73

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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.