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Finding the Fourth Proportional to 19,651.12, 27,119.11 and 10,698.77

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Solution

The fourth proportional to 19,651.12, 27,119.11 and 10,698.77 is: 14,764.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.12 : 27,119.11 = 10,698.77 : x
  2. Step 2: Convert to fraction form
    19,651.12/27,119.11 = 10,698.77/x
  3. Step 3: Cross multiply
    19,651.12x = 27,119.11 × 10,698.77
  4. Step 4: Simplify right side
    19,651.12x = 290,141,067.00
  5. Step 5: Solve for x
    x = 290,141,067.00/19,651.12
  6. Step 6: Final answer
    x = 14,764.61

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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.