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Finding the Fourth Proportional to 14,391.46, 19,861.67 and 8,019.09

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Solution

The fourth proportional to 14,391.46, 19,861.67 and 8,019.09 is: 11,067.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.46 : 19,861.67 = 8,019.09 : x
  2. Step 2: Convert to fraction form
    14,391.46/19,861.67 = 8,019.09/x
  3. Step 3: Cross multiply
    14,391.46x = 19,861.67 × 8,019.09
  4. Step 4: Simplify right side
    14,391.46x = 159,272,477.57
  5. Step 5: Solve for x
    x = 159,272,477.57/14,391.46
  6. Step 6: Final answer
    x = 11,067.15

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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.