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Finding the Fourth Proportional to 30,138.88, 41,593.92 and 17,560.96

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Solution

The fourth proportional to 30,138.88, 41,593.92 and 17,560.96 is: 24,235.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,138.88 : 41,593.92 = 17,560.96 : x
  2. Step 2: Convert to fraction form
    30,138.88/41,593.92 = 17,560.96/x
  3. Step 3: Cross multiply
    30,138.88x = 41,593.92 × 17,560.96
  4. Step 4: Simplify right side
    30,138.88x = 730,429,165.36
  5. Step 5: Solve for x
    x = 730,429,165.36/30,138.88
  6. Step 6: Final answer
    x = 24,235.44

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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.