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Finding the Fourth Proportional to 23,885.71, 35,836.07 and 18,638.64

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Solution

The fourth proportional to 23,885.71, 35,836.07 and 18,638.64 is: 27,963.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,885.71 : 35,836.07 = 18,638.64 : x
  2. Step 2: Convert to fraction form
    23,885.71/35,836.07 = 18,638.64/x
  3. Step 3: Cross multiply
    23,885.71x = 35,836.07 × 18,638.64
  4. Step 4: Simplify right side
    23,885.71x = 667,935,514.55
  5. Step 5: Solve for x
    x = 667,935,514.55/23,885.71
  6. Step 6: Final answer
    x = 27,963.82

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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.