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Finding the Fourth Proportional to 30,394.58, 41,944.64 and 18,449.91

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Solution

The fourth proportional to 30,394.58, 41,944.64 and 18,449.91 is: 25,460.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,394.58 : 41,944.64 = 18,449.91 : x
  2. Step 2: Convert to fraction form
    30,394.58/41,944.64 = 18,449.91/x
  3. Step 3: Cross multiply
    30,394.58x = 41,944.64 × 18,449.91
  4. Step 4: Simplify right side
    30,394.58x = 773,874,740.73
  5. Step 5: Solve for x
    x = 773,874,740.73/30,394.58
  6. Step 6: Final answer
    x = 25,460.95

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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.