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Finding the Fourth Proportional to 14,578.74, 21,874.26 and 7,183.26

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Solution

The fourth proportional to 14,578.74, 21,874.26 and 7,183.26 is: 10,777.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,578.74 : 21,874.26 = 7,183.26 : x
  2. Step 2: Convert to fraction form
    14,578.74/21,874.26 = 7,183.26/x
  3. Step 3: Cross multiply
    14,578.74x = 21,874.26 × 7,183.26
  4. Step 4: Simplify right side
    14,578.74x = 157,128,496.89
  5. Step 5: Solve for x
    x = 157,128,496.89/14,578.74
  6. Step 6: Final answer
    x = 10,777.92

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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.