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Finding the Fourth Proportional to 66,266.53, 99,431.73 and 32,989.53

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Solution

The fourth proportional to 66,266.53, 99,431.73 and 32,989.53 is: 49,500.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,266.53 : 99,431.73 = 32,989.53 : x
  2. Step 2: Convert to fraction form
    66,266.53/99,431.73 = 32,989.53/x
  3. Step 3: Cross multiply
    66,266.53x = 99,431.73 × 32,989.53
  4. Step 4: Simplify right side
    66,266.53x = 3,280,206,039.79
  5. Step 5: Solve for x
    x = 3,280,206,039.79/66,266.53
  6. Step 6: Final answer
    x = 49,500.19

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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.