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Finding the Fourth Proportional to 22,137.18, 30,552.03 and 13,641.09

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Solution

The fourth proportional to 22,137.18, 30,552.03 and 13,641.09 is: 18,826.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,137.18 : 30,552.03 = 13,641.09 : x
  2. Step 2: Convert to fraction form
    22,137.18/30,552.03 = 13,641.09/x
  3. Step 3: Cross multiply
    22,137.18x = 30,552.03 × 13,641.09
  4. Step 4: Simplify right side
    22,137.18x = 416,762,990.91
  5. Step 5: Solve for x
    x = 416,762,990.91/22,137.18
  6. Step 6: Final answer
    x = 18,826.38

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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.