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Finding the Fourth Proportional to 30,403.25, 41,956.08 and 16,974.71

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Solution

The fourth proportional to 30,403.25, 41,956.08 and 16,974.71 is: 23,424.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,403.25 : 41,956.08 = 16,974.71 : x
  2. Step 2: Convert to fraction form
    30,403.25/41,956.08 = 16,974.71/x
  3. Step 3: Cross multiply
    30,403.25x = 41,956.08 × 16,974.71
  4. Step 4: Simplify right side
    30,403.25x = 712,192,410.64
  5. Step 5: Solve for x
    x = 712,192,410.64/30,403.25
  6. Step 6: Final answer
    x = 23,424.88

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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.