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Finding the Fourth Proportional to 66,813.16, 100,227.99 and 21,833.46

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Solution

The fourth proportional to 66,813.16, 100,227.99 and 21,833.46 is: 32,752.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,813.16 : 100,227.99 = 21,833.46 : x
  2. Step 2: Convert to fraction form
    66,813.16/100,227.99 = 21,833.46/x
  3. Step 3: Cross multiply
    66,813.16x = 100,227.99 × 21,833.46
  4. Step 4: Simplify right side
    66,813.16x = 2,188,323,810.55
  5. Step 5: Solve for x
    x = 2,188,323,810.55/66,813.16
  6. Step 6: Final answer
    x = 32,752.89

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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.