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Finding the Fourth Proportional to 66,266.75, 99,432.03 and 32,989.75

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Solution

The fourth proportional to 66,266.75, 99,432.03 and 32,989.75 is: 49,500.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,266.75 : 99,432.03 = 32,989.75 : x
  2. Step 2: Convert to fraction form
    66,266.75/99,432.03 = 32,989.75/x
  3. Step 3: Cross multiply
    66,266.75x = 99,432.03 × 32,989.75
  4. Step 4: Simplify right side
    66,266.75x = 3,280,237,811.69
  5. Step 5: Solve for x
    x = 3,280,237,811.69/66,266.75
  6. Step 6: Final answer
    x = 49,500.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.