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Finding the Fourth Proportional to 83,791.62, 115,634.34 and 45,553.32

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Solution

The fourth proportional to 83,791.62, 115,634.34 and 45,553.32 is: 62,864.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,791.62 : 115,634.34 = 45,553.32 : x
  2. Step 2: Convert to fraction form
    83,791.62/115,634.34 = 45,553.32/x
  3. Step 3: Cross multiply
    83,791.62x = 115,634.34 × 45,553.32
  4. Step 4: Simplify right side
    83,791.62x = 5,267,528,093.01
  5. Step 5: Solve for x
    x = 5,267,528,093.01/83,791.62
  6. Step 6: Final answer
    x = 62,864.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.