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Finding the Fourth Proportional to 29,911.99, 41,278.11 and 17,164.90

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Solution

The fourth proportional to 29,911.99, 41,278.11 and 17,164.90 is: 23,687.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,911.99 : 41,278.11 = 17,164.90 : x
  2. Step 2: Convert to fraction form
    29,911.99/41,278.11 = 17,164.90/x
  3. Step 3: Cross multiply
    29,911.99x = 41,278.11 × 17,164.90
  4. Step 4: Simplify right side
    29,911.99x = 708,534,630.34
  5. Step 5: Solve for x
    x = 708,534,630.34/29,911.99
  6. Step 6: Final answer
    x = 23,687.31

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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.