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Finding the Fourth Proportional to 53,908.67, 80,900.51 and 22,318.89

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Solution

The fourth proportional to 53,908.67, 80,900.51 and 22,318.89 is: 33,493.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,908.67 : 80,900.51 = 22,318.89 : x
  2. Step 2: Convert to fraction form
    53,908.67/80,900.51 = 22,318.89/x
  3. Step 3: Cross multiply
    53,908.67x = 80,900.51 × 22,318.89
  4. Step 4: Simplify right side
    53,908.67x = 1,805,609,639.43
  5. Step 5: Solve for x
    x = 1,805,609,639.43/53,908.67
  6. Step 6: Final answer
    x = 33,493.87

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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.