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Finding the Fourth Proportional to 19,394.29, 29,091.44 and 5,543.29

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Solution

The fourth proportional to 19,394.29, 29,091.44 and 5,543.29 is: 8,314.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,394.29 : 29,091.44 = 5,543.29 : x
  2. Step 2: Convert to fraction form
    19,394.29/29,091.44 = 5,543.29/x
  3. Step 3: Cross multiply
    19,394.29x = 29,091.44 × 5,543.29
  4. Step 4: Simplify right side
    19,394.29x = 161,262,288.44
  5. Step 5: Solve for x
    x = 161,262,288.44/19,394.29
  6. Step 6: Final answer
    x = 8,314.94

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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.