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Finding the Fourth Proportional to 18,690.95, 25,793.54 and 10,193.09

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Solution

The fourth proportional to 18,690.95, 25,793.54 and 10,193.09 is: 14,066.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.95 : 25,793.54 = 10,193.09 : x
  2. Step 2: Convert to fraction form
    18,690.95/25,793.54 = 10,193.09/x
  3. Step 3: Cross multiply
    18,690.95x = 25,793.54 × 10,193.09
  4. Step 4: Simplify right side
    18,690.95x = 262,915,878.02
  5. Step 5: Solve for x
    x = 262,915,878.02/18,690.95
  6. Step 6: Final answer
    x = 14,066.48

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Similar ratio
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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.