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Finding the Fourth Proportional to 19,655.52, 27,119.52 and 11,694.24

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Solution

The fourth proportional to 19,655.52, 27,119.52 and 11,694.24 is: 16,135.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,655.52 : 27,119.52 = 11,694.24 : x
  2. Step 2: Convert to fraction form
    19,655.52/27,119.52 = 11,694.24/x
  3. Step 3: Cross multiply
    19,655.52x = 27,119.52 × 11,694.24
  4. Step 4: Simplify right side
    19,655.52x = 317,142,175.56
  5. Step 5: Solve for x
    x = 317,142,175.56/19,655.52
  6. Step 6: Final answer
    x = 16,135.02

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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.