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Finding the Fourth Proportional to 28,635.71, 39,502.02 and 16,694.69

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Solution

The fourth proportional to 28,635.71, 39,502.02 and 16,694.69 is: 23,029.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,635.71 : 39,502.02 = 16,694.69 : x
  2. Step 2: Convert to fraction form
    28,635.71/39,502.02 = 16,694.69/x
  3. Step 3: Cross multiply
    28,635.71x = 39,502.02 × 16,694.69
  4. Step 4: Simplify right side
    28,635.71x = 659,473,978.27
  5. Step 5: Solve for x
    x = 659,473,978.27/28,635.71
  6. Step 6: Final answer
    x = 23,029.78

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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.