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Finding the Fourth Proportional to 19,653.52, 27,119.72 and 11,694.64

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Solution

The fourth proportional to 19,653.52, 27,119.72 and 11,694.64 is: 16,137.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,653.52 : 27,119.72 = 11,694.64 : x
  2. Step 2: Convert to fraction form
    19,653.52/27,119.72 = 11,694.64/x
  3. Step 3: Cross multiply
    19,653.52x = 27,119.72 × 11,694.64
  4. Step 4: Simplify right side
    19,653.52x = 317,155,362.30
  5. Step 5: Solve for x
    x = 317,155,362.30/19,653.52
  6. Step 6: Final answer
    x = 16,137.33

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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.