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Finding the Fourth Proportional to 18,792.72, 25,933.44 and 10,294.80

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Solution

The fourth proportional to 18,792.72, 25,933.44 and 10,294.80 is: 14,206.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792.72 : 25,933.44 = 10,294.80 : x
  2. Step 2: Convert to fraction form
    18,792.72/25,933.44 = 10,294.80/x
  3. Step 3: Cross multiply
    18,792.72x = 25,933.44 × 10,294.80
  4. Step 4: Simplify right side
    18,792.72x = 266,979,578.11
  5. Step 5: Solve for x
    x = 266,979,578.11/18,792.72
  6. Step 6: Final answer
    x = 14,206.54

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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.