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Finding the Fourth Proportional to 29,404.91, 40,578.99 and 15,976.19

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Solution

The fourth proportional to 29,404.91, 40,578.99 and 15,976.19 is: 22,047.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,404.91 : 40,578.99 = 15,976.19 : x
  2. Step 2: Convert to fraction form
    29,404.91/40,578.99 = 15,976.19/x
  3. Step 3: Cross multiply
    29,404.91x = 40,578.99 × 15,976.19
  4. Step 4: Simplify right side
    29,404.91x = 648,297,451.35
  5. Step 5: Solve for x
    x = 648,297,451.35/29,404.91
  6. Step 6: Final answer
    x = 22,047.26

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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.