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Finding the Fourth Proportional to 19,192.97, 28,789.45 and 7,497.98

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Solution

The fourth proportional to 19,192.97, 28,789.45 and 7,497.98 is: 11,246.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,192.97 : 28,789.45 = 7,497.98 : x
  2. Step 2: Convert to fraction form
    19,192.97/28,789.45 = 7,497.98/x
  3. Step 3: Cross multiply
    19,192.97x = 28,789.45 × 7,497.98
  4. Step 4: Simplify right side
    19,192.97x = 215,862,773.54
  5. Step 5: Solve for x
    x = 215,862,773.54/19,192.97
  6. Step 6: Final answer
    x = 11,246.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.