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Finding the Fourth Proportional to 19,695.71, 27,185.70 and 11,202.41

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Solution

The fourth proportional to 19,695.71, 27,185.70 and 11,202.41 is: 15,462.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,695.71 : 27,185.70 = 11,202.41 : x
  2. Step 2: Convert to fraction form
    19,695.71/27,185.70 = 11,202.41/x
  3. Step 3: Cross multiply
    19,695.71x = 27,185.70 × 11,202.41
  4. Step 4: Simplify right side
    19,695.71x = 304,545,357.54
  5. Step 5: Solve for x
    x = 304,545,357.54/19,695.71
  6. Step 6: Final answer
    x = 15,462.52

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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.