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Finding the Fourth Proportional to 19,246.07, 28,846.69 and 8,149.07

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Solution

The fourth proportional to 19,246.07, 28,846.69 and 8,149.07 is: 12,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,246.07 : 28,846.69 = 8,149.07 : x
  2. Step 2: Convert to fraction form
    19,246.07/28,846.69 = 8,149.07/x
  3. Step 3: Cross multiply
    19,246.07x = 28,846.69 × 8,149.07
  4. Step 4: Simplify right side
    19,246.07x = 235,073,696.08
  5. Step 5: Solve for x
    x = 235,073,696.08/19,246.07
  6. Step 6: Final answer
    x = 12,214.11

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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.