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Finding the Fourth Proportional to 27,322.88, 40,956.95 and 10,659.98

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Solution

The fourth proportional to 27,322.88, 40,956.95 and 10,659.98 is: 15,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,322.88 : 40,956.95 = 10,659.98 : x
  2. Step 2: Convert to fraction form
    27,322.88/40,956.95 = 10,659.98/x
  3. Step 3: Cross multiply
    27,322.88x = 40,956.95 × 10,659.98
  4. Step 4: Simplify right side
    27,322.88x = 436,600,396.90
  5. Step 5: Solve for x
    x = 436,600,396.90/27,322.88
  6. Step 6: Final answer
    x = 15,979.30

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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.