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Finding the Fourth Proportional to 65,049.91, 89,767.70 and 36,754.99

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Solution

The fourth proportional to 65,049.91, 89,767.70 and 36,754.99 is: 50,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,049.91 : 89,767.70 = 36,754.99 : x
  2. Step 2: Convert to fraction form
    65,049.91/89,767.70 = 36,754.99/x
  3. Step 3: Cross multiply
    65,049.91x = 89,767.70 × 36,754.99
  4. Step 4: Simplify right side
    65,049.91x = 3,299,410,915.82
  5. Step 5: Solve for x
    x = 3,299,410,915.82/65,049.91
  6. Step 6: Final answer
    x = 50,721.22

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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.