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Finding the Fourth Proportional to 19,897.50, 27,458.09 and 10,944.92

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Solution

The fourth proportional to 19,897.50, 27,458.09 and 10,944.92 is: 15,103.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,897.50 : 27,458.09 = 10,944.92 : x
  2. Step 2: Convert to fraction form
    19,897.50/27,458.09 = 10,944.92/x
  3. Step 3: Cross multiply
    19,897.50x = 27,458.09 × 10,944.92
  4. Step 4: Simplify right side
    19,897.50x = 300,526,653.37
  5. Step 5: Solve for x
    x = 300,526,653.37/19,897.50
  6. Step 6: Final answer
    x = 15,103.74

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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.