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Finding the Fourth Proportional to 18,992.19, 26,206.97 and 10,493.81

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Solution

The fourth proportional to 18,992.19, 26,206.97 and 10,493.81 is: 14,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.19 : 26,206.97 = 10,493.81 : x
  2. Step 2: Convert to fraction form
    18,992.19/26,206.97 = 10,493.81/x
  3. Step 3: Cross multiply
    18,992.19x = 26,206.97 × 10,493.81
  4. Step 4: Simplify right side
    18,992.19x = 275,010,780.35
  5. Step 5: Solve for x
    x = 275,010,780.35/18,992.19
  6. Step 6: Final answer
    x = 14,480.20

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Half scale
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Double scale
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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.