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Finding the Fourth Proportional to 20,194.58, 30,305.71 and 7,046.95

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Solution

The fourth proportional to 20,194.58, 30,305.71 and 7,046.95 is: 10,575.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,194.58 : 30,305.71 = 7,046.95 : x
  2. Step 2: Convert to fraction form
    20,194.58/30,305.71 = 7,046.95/x
  3. Step 3: Cross multiply
    20,194.58x = 30,305.71 × 7,046.95
  4. Step 4: Simplify right side
    20,194.58x = 213,562,812.95
  5. Step 5: Solve for x
    x = 213,562,812.95/20,194.58
  6. Step 6: Final answer
    x = 10,575.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.