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Finding the Fourth Proportional to 29,644.72, 40,910.04 and 16,215.68

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Solution

The fourth proportional to 29,644.72, 40,910.04 and 16,215.68 is: 22,377.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,644.72 : 40,910.04 = 16,215.68 : x
  2. Step 2: Convert to fraction form
    29,644.72/40,910.04 = 16,215.68/x
  3. Step 3: Cross multiply
    29,644.72x = 40,910.04 × 16,215.68
  4. Step 4: Simplify right side
    29,644.72x = 663,384,117.43
  5. Step 5: Solve for x
    x = 663,384,117.43/29,644.72
  6. Step 6: Final answer
    x = 22,377.82

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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.