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Finding the Fourth Proportional to 61,479.12, 84,862.44 and 36,327

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Solution

The fourth proportional to 61,479.12, 84,862.44 and 36,327 is: 50,143.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,479.12 : 84,862.44 = 36,327 : x
  2. Step 2: Convert to fraction form
    61,479.12/84,862.44 = 36,327/x
  3. Step 3: Cross multiply
    61,479.12x = 84,862.44 × 36,327
  4. Step 4: Simplify right side
    61,479.12x = 3,082,797,857.88
  5. Step 5: Solve for x
    x = 3,082,797,857.88/61,479.12
  6. Step 6: Final answer
    x = 50,143.82

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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.