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Finding the Fourth Proportional to 29,469.60, 40,669.12 and 16,040.21

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Solution

The fourth proportional to 29,469.60, 40,669.12 and 16,040.21 is: 22,136.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,469.60 : 40,669.12 = 16,040.21 : x
  2. Step 2: Convert to fraction form
    29,469.60/40,669.12 = 16,040.21/x
  3. Step 3: Cross multiply
    29,469.60x = 40,669.12 × 16,040.21
  4. Step 4: Simplify right side
    29,469.60x = 652,341,042.02
  5. Step 5: Solve for x
    x = 652,341,042.02/29,469.60
  6. Step 6: Final answer
    x = 22,136.07

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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.