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Finding the Fourth Proportional to 66,266.73, 99,366.04 and 19,513.53

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Solution

The fourth proportional to 66,266.73, 99,366.04 and 19,513.53 is: 29,260.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,266.73 : 99,366.04 = 19,513.53 : x
  2. Step 2: Convert to fraction form
    66,266.73/99,366.04 = 19,513.53/x
  3. Step 3: Cross multiply
    66,266.73x = 99,366.04 × 19,513.53
  4. Step 4: Simplify right side
    66,266.73x = 1,938,981,608.12
  5. Step 5: Solve for x
    x = 1,938,981,608.12/66,266.73
  6. Step 6: Final answer
    x = 29,260.26

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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.