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Finding the Fourth Proportional to 19,645.71, 27,113.39 and 11,033.31

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Solution

The fourth proportional to 19,645.71, 27,113.39 and 11,033.31 is: 15,227.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,645.71 : 27,113.39 = 11,033.31 : x
  2. Step 2: Convert to fraction form
    19,645.71/27,113.39 = 11,033.31/x
  3. Step 3: Cross multiply
    19,645.71x = 27,113.39 × 11,033.31
  4. Step 4: Simplify right side
    19,645.71x = 299,150,246.29
  5. Step 5: Solve for x
    x = 299,150,246.29/19,645.71
  6. Step 6: Final answer
    x = 15,227.26

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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.