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Finding the Fourth Proportional to 30,404.91, 41,958.38 and 16,976.39

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Solution

The fourth proportional to 30,404.91, 41,958.38 and 16,976.39 is: 23,427.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,404.91 : 41,958.38 = 16,976.39 : x
  2. Step 2: Convert to fraction form
    30,404.91/41,958.38 = 16,976.39/x
  3. Step 3: Cross multiply
    30,404.91x = 41,958.38 × 16,976.39
  4. Step 4: Simplify right side
    30,404.91x = 712,301,737.77
  5. Step 5: Solve for x
    x = 712,301,737.77/30,404.91
  6. Step 6: Final answer
    x = 23,427.19

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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.