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Finding the Fourth Proportional to 18,794.31, 28,192.14 and 6,314.74

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Solution

The fourth proportional to 18,794.31, 28,192.14 and 6,314.74 is: 9,472.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.31 : 28,192.14 = 6,314.74 : x
  2. Step 2: Convert to fraction form
    18,794.31/28,192.14 = 6,314.74/x
  3. Step 3: Cross multiply
    18,794.31x = 28,192.14 × 6,314.74
  4. Step 4: Simplify right side
    18,794.31x = 178,025,963.66
  5. Step 5: Solve for x
    x = 178,025,963.66/18,794.31
  6. Step 6: Final answer
    x = 9,472.33

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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.