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Finding the Fourth Proportional to 18,896.67, 28,338.99 and 6,244.08

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Solution

The fourth proportional to 18,896.67, 28,338.99 and 6,244.08 is: 9,364.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,896.67 : 28,338.99 = 6,244.08 : x
  2. Step 2: Convert to fraction form
    18,896.67/28,338.99 = 6,244.08/x
  3. Step 3: Cross multiply
    18,896.67x = 28,338.99 × 6,244.08
  4. Step 4: Simplify right side
    18,896.67x = 176,950,790.99
  5. Step 5: Solve for x
    x = 176,950,790.99/18,896.67
  6. Step 6: Final answer
    x = 9,364.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.