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Finding the Fourth Proportional to 29,645.36, 40,911.41 and 16,217.41

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Solution

The fourth proportional to 29,645.36, 40,911.41 and 16,217.41 is: 22,380.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,645.36 : 40,911.41 = 16,217.41 : x
  2. Step 2: Convert to fraction form
    29,645.36/40,911.41 = 16,217.41/x
  3. Step 3: Cross multiply
    29,645.36x = 40,911.41 × 16,217.41
  4. Step 4: Simplify right side
    29,645.36x = 663,477,109.65
  5. Step 5: Solve for x
    x = 663,477,109.65/29,645.36
  6. Step 6: Final answer
    x = 22,380.47

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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.