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Finding the Fourth Proportional to 28,246.92, 42,371.49 and 8,525.48

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Solution

The fourth proportional to 28,246.92, 42,371.49 and 8,525.48 is: 12,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.92 : 42,371.49 = 8,525.48 : x
  2. Step 2: Convert to fraction form
    28,246.92/42,371.49 = 8,525.48/x
  3. Step 3: Cross multiply
    28,246.92x = 42,371.49 × 8,525.48
  4. Step 4: Simplify right side
    28,246.92x = 361,237,078.71
  5. Step 5: Solve for x
    x = 361,237,078.71/28,246.92
  6. Step 6: Final answer
    x = 12,788.55

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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.