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Finding the Fourth Proportional to 19,143.46, 28,685.94 and 8,044.08

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Solution

The fourth proportional to 19,143.46, 28,685.94 and 8,044.08 is: 12,053.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.46 : 28,685.94 = 8,044.08 : x
  2. Step 2: Convert to fraction form
    19,143.46/28,685.94 = 8,044.08/x
  3. Step 3: Cross multiply
    19,143.46x = 28,685.94 × 8,044.08
  4. Step 4: Simplify right side
    19,143.46x = 230,751,996.24
  5. Step 5: Solve for x
    x = 230,751,996.24/19,143.46
  6. Step 6: Final answer
    x = 12,053.83

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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.