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Finding the Fourth Proportional to 29,108.40, 40,174.42 and 17,174.66

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Solution

The fourth proportional to 29,108.40, 40,174.42 and 17,174.66 is: 23,703.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,108.40 : 40,174.42 = 17,174.66 : x
  2. Step 2: Convert to fraction form
    29,108.40/40,174.42 = 17,174.66/x
  3. Step 3: Cross multiply
    29,108.40x = 40,174.42 × 17,174.66
  4. Step 4: Simplify right side
    29,108.40x = 689,982,004.20
  5. Step 5: Solve for x
    x = 689,982,004.20/29,108.40
  6. Step 6: Final answer
    x = 23,703.88

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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.