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Finding the Fourth Proportional to 18,898.99, 26,091.79 and 16,797.11

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Solution

The fourth proportional to 18,898.99, 26,091.79 and 16,797.11 is: 23,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.99 : 26,091.79 = 16,797.11 : x
  2. Step 2: Convert to fraction form
    18,898.99/26,091.79 = 16,797.11/x
  3. Step 3: Cross multiply
    18,898.99x = 26,091.79 × 16,797.11
  4. Step 4: Simplify right side
    18,898.99x = 438,266,494.28
  5. Step 5: Solve for x
    x = 438,266,494.28/18,898.99
  6. Step 6: Final answer
    x = 23,189.95

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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.