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Finding the Fourth Proportional to 29,571.91, 40,810.20 and 16,143.89

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Solution

The fourth proportional to 29,571.91, 40,810.20 and 16,143.89 is: 22,279.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,571.91 : 40,810.20 = 16,143.89 : x
  2. Step 2: Convert to fraction form
    29,571.91/40,810.20 = 16,143.89/x
  3. Step 3: Cross multiply
    29,571.91x = 40,810.20 × 16,143.89
  4. Step 4: Simplify right side
    29,571.91x = 658,835,175.63
  5. Step 5: Solve for x
    x = 658,835,175.63/29,571.91
  6. Step 6: Final answer
    x = 22,279.09

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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.