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Finding the Fourth Proportional to 28,983.46, 39,991.02 and 17,042.44

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Solution

The fourth proportional to 28,983.46, 39,991.02 and 17,042.44 is: 23,514.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,983.46 : 39,991.02 = 17,042.44 : x
  2. Step 2: Convert to fraction form
    28,983.46/39,991.02 = 17,042.44/x
  3. Step 3: Cross multiply
    28,983.46x = 39,991.02 × 17,042.44
  4. Step 4: Simplify right side
    28,983.46x = 681,544,558.89
  5. Step 5: Solve for x
    x = 681,544,558.89/28,983.46
  6. Step 6: Final answer
    x = 23,514.95

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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.