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Finding the Fourth Proportional to 52,707.38, 79,072.00 and 21,542.63

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Solution

The fourth proportional to 52,707.38, 79,072.00 and 21,542.63 is: 32,318.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,707.38 : 79,072.00 = 21,542.63 : x
  2. Step 2: Convert to fraction form
    52,707.38/79,072.00 = 21,542.63/x
  3. Step 3: Cross multiply
    52,707.38x = 79,072.00 × 21,542.63
  4. Step 4: Simplify right side
    52,707.38x = 1,703,418,390.14
  5. Step 5: Solve for x
    x = 1,703,418,390.14/52,707.38
  6. Step 6: Final answer
    x = 32,318.41

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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.