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Finding the Fourth Proportional to 69,813.79, 96,341.97 and 37,981.96

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Solution

The fourth proportional to 69,813.79, 96,341.97 and 37,981.96 is: 52,414.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,813.79 : 96,341.97 = 37,981.96 : x
  2. Step 2: Convert to fraction form
    69,813.79/96,341.97 = 37,981.96/x
  3. Step 3: Cross multiply
    69,813.79x = 96,341.97 × 37,981.96
  4. Step 4: Simplify right side
    69,813.79x = 3,659,256,850.86
  5. Step 5: Solve for x
    x = 3,659,256,850.86/69,813.79
  6. Step 6: Final answer
    x = 52,414.53

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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.