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Finding the Fourth Proportional to 64,793.93, 89,418.38 and 36,113.63

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Solution

The fourth proportional to 64,793.93, 89,418.38 and 36,113.63 is: 49,838.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,793.93 : 89,418.38 = 36,113.63 : x
  2. Step 2: Convert to fraction form
    64,793.93/89,418.38 = 36,113.63/x
  3. Step 3: Cross multiply
    64,793.93x = 89,418.38 × 36,113.63
  4. Step 4: Simplify right side
    64,793.93x = 3,229,221,662.86
  5. Step 5: Solve for x
    x = 3,229,221,662.86/64,793.93
  6. Step 6: Final answer
    x = 49,838.34

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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.