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Finding the Fourth Proportional to 19,959.59, 27,545.49 and 11,007.09

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Solution

The fourth proportional to 19,959.59, 27,545.49 and 11,007.09 is: 15,190.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959.59 : 27,545.49 = 11,007.09 : x
  2. Step 2: Convert to fraction form
    19,959.59/27,545.49 = 11,007.09/x
  3. Step 3: Cross multiply
    19,959.59x = 27,545.49 × 11,007.09
  4. Step 4: Simplify right side
    19,959.59x = 303,195,687.52
  5. Step 5: Solve for x
    x = 303,195,687.52/19,959.59
  6. Step 6: Final answer
    x = 15,190.48

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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.