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Finding the Fourth Proportional to 27,336.71, 40,855.28 and 19,956.71

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Solution

The fourth proportional to 27,336.71, 40,855.28 and 19,956.71 is: 29,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,336.71 : 40,855.28 = 19,956.71 : x
  2. Step 2: Convert to fraction form
    27,336.71/40,855.28 = 19,956.71/x
  3. Step 3: Cross multiply
    27,336.71x = 40,855.28 × 19,956.71
  4. Step 4: Simplify right side
    27,336.71x = 815,336,670.87
  5. Step 5: Solve for x
    x = 815,336,670.87/27,336.71
  6. Step 6: Final answer
    x = 29,825.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.