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Finding the Fourth Proportional to 19,363.97, 29,045.96 and 5,512.97

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Solution

The fourth proportional to 19,363.97, 29,045.96 and 5,512.97 is: 8,269.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,363.97 : 29,045.96 = 5,512.97 : x
  2. Step 2: Convert to fraction form
    19,363.97/29,045.96 = 5,512.97/x
  3. Step 3: Cross multiply
    19,363.97x = 29,045.96 × 5,512.97
  4. Step 4: Simplify right side
    19,363.97x = 160,129,551.15
  5. Step 5: Solve for x
    x = 160,129,551.15/19,363.97
  6. Step 6: Final answer
    x = 8,269.46

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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.