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Finding the Fourth Proportional to 22,860.81, 34,295.31 and 8,078.31

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Solution

The fourth proportional to 22,860.81, 34,295.31 and 8,078.31 is: 12,118.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,860.81 : 34,295.31 = 8,078.31 : x
  2. Step 2: Convert to fraction form
    22,860.81/34,295.31 = 8,078.31/x
  3. Step 3: Cross multiply
    22,860.81x = 34,295.31 × 8,078.31
  4. Step 4: Simplify right side
    22,860.81x = 277,048,145.73
  5. Step 5: Solve for x
    x = 277,048,145.73/22,860.81
  6. Step 6: Final answer
    x = 12,118.91

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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.