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Finding the Fourth Proportional to 28,872.27, 39,841.02 and 16,933.30

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Solution

The fourth proportional to 28,872.27, 39,841.02 and 16,933.30 is: 23,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.27 : 39,841.02 = 16,933.30 : x
  2. Step 2: Convert to fraction form
    28,872.27/39,841.02 = 16,933.30/x
  3. Step 3: Cross multiply
    28,872.27x = 39,841.02 × 16,933.30
  4. Step 4: Simplify right side
    28,872.27x = 674,639,943.97
  5. Step 5: Solve for x
    x = 674,639,943.97/28,872.27
  6. Step 6: Final answer
    x = 23,366.36

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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.