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Finding the Fourth Proportional to 13,073.96, 18,044.85 and 8,042.42

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Solution

The fourth proportional to 13,073.96, 18,044.85 and 8,042.42 is: 11,100.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,073.96 : 18,044.85 = 8,042.42 : x
  2. Step 2: Convert to fraction form
    13,073.96/18,044.85 = 8,042.42/x
  3. Step 3: Cross multiply
    13,073.96x = 18,044.85 × 8,042.42
  4. Step 4: Simplify right side
    13,073.96x = 145,124,262.54
  5. Step 5: Solve for x
    x = 145,124,262.54/13,073.96
  6. Step 6: Final answer
    x = 11,100.25

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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.