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Finding the Fourth Proportional to 64,954.80, 89,637.12 and 36,659.52

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Solution

The fourth proportional to 64,954.80, 89,637.12 and 36,659.52 is: 50,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,954.80 : 89,637.12 = 36,659.52 : x
  2. Step 2: Convert to fraction form
    64,954.80/89,637.12 = 36,659.52/x
  3. Step 3: Cross multiply
    64,954.80x = 89,637.12 × 36,659.52
  4. Step 4: Simplify right side
    64,954.80x = 3,286,053,793.38
  5. Step 5: Solve for x
    x = 3,286,053,793.38/64,954.80
  6. Step 6: Final answer
    x = 50,589.85

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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.