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Finding the Fourth Proportional to 37,694.88, 52,028.28 and 21,789.24

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Solution

The fourth proportional to 37,694.88, 52,028.28 and 21,789.24 is: 30,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,694.88 : 52,028.28 = 21,789.24 : x
  2. Step 2: Convert to fraction form
    37,694.88/52,028.28 = 21,789.24/x
  3. Step 3: Cross multiply
    37,694.88x = 52,028.28 × 21,789.24
  4. Step 4: Simplify right side
    37,694.88x = 1,133,656,679.71
  5. Step 5: Solve for x
    x = 1,133,656,679.71/37,694.88
  6. Step 6: Final answer
    x = 30,074.55

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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.