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Finding the Fourth Proportional to 19,907.97, 27,474.84 and 10,957.29

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Solution

The fourth proportional to 19,907.97, 27,474.84 and 10,957.29 is: 15,122.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.97 : 27,474.84 = 10,957.29 : x
  2. Step 2: Convert to fraction form
    19,907.97/27,474.84 = 10,957.29/x
  3. Step 3: Cross multiply
    19,907.97x = 27,474.84 × 10,957.29
  4. Step 4: Simplify right side
    19,907.97x = 301,049,789.58
  5. Step 5: Solve for x
    x = 301,049,789.58/19,907.97
  6. Step 6: Final answer
    x = 15,122.07

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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.