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Finding the Fourth Proportional to 64,793.11, 89,415.39 and 36,111.97

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Solution

The fourth proportional to 64,793.11, 89,415.39 and 36,111.97 is: 49,835.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,793.11 : 89,415.39 = 36,111.97 : x
  2. Step 2: Convert to fraction form
    64,793.11/89,415.39 = 36,111.97/x
  3. Step 3: Cross multiply
    64,793.11x = 89,415.39 × 36,111.97
  4. Step 4: Simplify right side
    64,793.11x = 3,228,966,092.93
  5. Step 5: Solve for x
    x = 3,228,966,092.93/64,793.11
  6. Step 6: Final answer
    x = 49,835.02

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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.