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Finding the Fourth Proportional to 19,651.24, 27,119.28 and 10,698.90

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Solution

The fourth proportional to 19,651.24, 27,119.28 and 10,698.90 is: 14,764.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.24 : 27,119.28 = 10,698.90 : x
  2. Step 2: Convert to fraction form
    19,651.24/27,119.28 = 10,698.90/x
  3. Step 3: Cross multiply
    19,651.24x = 27,119.28 × 10,698.90
  4. Step 4: Simplify right side
    19,651.24x = 290,146,363.09
  5. Step 5: Solve for x
    x = 290,146,363.09/19,651.24
  6. Step 6: Final answer
    x = 14,764.79

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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.