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Finding the Fourth Proportional to 65,049.72, 89,767.44 and 36,754.80

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Solution

The fourth proportional to 65,049.72, 89,767.44 and 36,754.80 is: 50,720.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,049.72 : 89,767.44 = 36,754.80 : x
  2. Step 2: Convert to fraction form
    65,049.72/89,767.44 = 36,754.80/x
  3. Step 3: Cross multiply
    65,049.72x = 89,767.44 × 36,754.80
  4. Step 4: Simplify right side
    65,049.72x = 3,299,384,079.29
  5. Step 5: Solve for x
    x = 3,299,384,079.29/65,049.72
  6. Step 6: Final answer
    x = 50,720.96

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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.