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Finding the Fourth Proportional to 19,794.92, 27,310.21 and 11,290.93

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Solution

The fourth proportional to 19,794.92, 27,310.21 and 11,290.93 is: 15,577.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,794.92 : 27,310.21 = 11,290.93 : x
  2. Step 2: Convert to fraction form
    19,794.92/27,310.21 = 11,290.93/x
  3. Step 3: Cross multiply
    19,794.92x = 27,310.21 × 11,290.93
  4. Step 4: Simplify right side
    19,794.92x = 308,357,669.40
  5. Step 5: Solve for x
    x = 308,357,669.40/19,794.92
  6. Step 6: Final answer
    x = 15,577.62

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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.