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Finding the Fourth Proportional to 69,337.85, 104,022.43 and 21,955.82

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Solution

The fourth proportional to 69,337.85, 104,022.43 and 21,955.82 is: 32,938.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,337.85 : 104,022.43 = 21,955.82 : x
  2. Step 2: Convert to fraction form
    69,337.85/104,022.43 = 21,955.82/x
  3. Step 3: Cross multiply
    69,337.85x = 104,022.43 × 21,955.82
  4. Step 4: Simplify right side
    69,337.85x = 2,283,897,174.04
  5. Step 5: Solve for x
    x = 2,283,897,174.04/69,337.85
  6. Step 6: Final answer
    x = 32,938.68

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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.