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Finding the Fourth Proportional to 14,391.27, 19,859.87 and 8,018.14

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Solution

The fourth proportional to 14,391.27, 19,859.87 and 8,018.14 is: 11,064.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.27 : 19,859.87 = 8,018.14 : x
  2. Step 2: Convert to fraction form
    14,391.27/19,859.87 = 8,018.14/x
  3. Step 3: Cross multiply
    14,391.27x = 19,859.87 × 8,018.14
  4. Step 4: Simplify right side
    14,391.27x = 159,239,078.65
  5. Step 5: Solve for x
    x = 159,239,078.65/14,391.27
  6. Step 6: Final answer
    x = 11,064.98

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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.