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Finding the Fourth Proportional to 16,290.95, 22,481.49 and 8,838.95

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Solution

The fourth proportional to 16,290.95, 22,481.49 and 8,838.95 is: 12,197.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290.95 : 22,481.49 = 8,838.95 : x
  2. Step 2: Convert to fraction form
    16,290.95/22,481.49 = 8,838.95/x
  3. Step 3: Cross multiply
    16,290.95x = 22,481.49 × 8,838.95
  4. Step 4: Simplify right side
    16,290.95x = 198,712,653.63
  5. Step 5: Solve for x
    x = 198,712,653.63/16,290.95
  6. Step 6: Final answer
    x = 12,197.74

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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.