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Finding the Fourth Proportional to 19,394.93, 29,092.08 and 11,057.15

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Solution

The fourth proportional to 19,394.93, 29,092.08 and 11,057.15 is: 16,585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,394.93 : 29,092.08 = 11,057.15 : x
  2. Step 2: Convert to fraction form
    19,394.93/29,092.08 = 11,057.15/x
  3. Step 3: Cross multiply
    19,394.93x = 29,092.08 × 11,057.15
  4. Step 4: Simplify right side
    19,394.93x = 321,675,492.37
  5. Step 5: Solve for x
    x = 321,675,492.37/19,394.93
  6. Step 6: Final answer
    x = 16,585.55

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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.