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Finding the Fourth Proportional to 86,616.63, 129,924.94 and 27,452.30

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Solution

The fourth proportional to 86,616.63, 129,924.94 and 27,452.30 is: 41,178.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,616.63 : 129,924.94 = 27,452.30 : x
  2. Step 2: Convert to fraction form
    86,616.63/129,924.94 = 27,452.30/x
  3. Step 3: Cross multiply
    86,616.63x = 129,924.94 × 27,452.30
  4. Step 4: Simplify right side
    86,616.63x = 3,566,737,910.82
  5. Step 5: Solve for x
    x = 3,566,737,910.82/86,616.63
  6. Step 6: Final answer
    x = 41,178.44

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1.5x scale

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.