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Finding the Fourth Proportional to 65,099.20, 89,833.44 and 36,803.20

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Solution

The fourth proportional to 65,099.20, 89,833.44 and 36,803.20 is: 50,786.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,099.20 : 89,833.44 = 36,803.20 : x
  2. Step 2: Convert to fraction form
    65,099.20/89,833.44 = 36,803.20/x
  3. Step 3: Cross multiply
    65,099.20x = 89,833.44 × 36,803.20
  4. Step 4: Simplify right side
    65,099.20x = 3,306,158,059.01
  5. Step 5: Solve for x
    x = 3,306,158,059.01/65,099.20
  6. Step 6: Final answer
    x = 50,786.46

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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.