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Finding the Fourth Proportional to 18,859.98, 26,033.79 and 16,196.70

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Solution

The fourth proportional to 18,859.98, 26,033.79 and 16,196.70 is: 22,357.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,859.98 : 26,033.79 = 16,196.70 : x
  2. Step 2: Convert to fraction form
    18,859.98/26,033.79 = 16,196.70/x
  3. Step 3: Cross multiply
    18,859.98x = 26,033.79 × 16,196.70
  4. Step 4: Simplify right side
    18,859.98x = 421,661,486.49
  5. Step 5: Solve for x
    x = 421,661,486.49/18,859.98
  6. Step 6: Final answer
    x = 22,357.47

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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.