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Finding the Fourth Proportional to 29,630.67, 40,890.05 and 16,201.79

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Solution

The fourth proportional to 29,630.67, 40,890.05 and 16,201.79 is: 22,358.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,630.67 : 40,890.05 = 16,201.79 : x
  2. Step 2: Convert to fraction form
    29,630.67/40,890.05 = 16,201.79/x
  3. Step 3: Cross multiply
    29,630.67x = 40,890.05 × 16,201.79
  4. Step 4: Simplify right side
    29,630.67x = 662,491,717.73
  5. Step 5: Solve for x
    x = 662,491,717.73/29,630.67
  6. Step 6: Final answer
    x = 22,358.31

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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.