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Finding the Fourth Proportional to 22,149.63, 30,566.03 and 12,078.17

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Solution

The fourth proportional to 22,149.63, 30,566.03 and 12,078.17 is: 16,667.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,149.63 : 30,566.03 = 12,078.17 : x
  2. Step 2: Convert to fraction form
    22,149.63/30,566.03 = 12,078.17/x
  3. Step 3: Cross multiply
    22,149.63x = 30,566.03 × 12,078.17
  4. Step 4: Simplify right side
    22,149.63x = 369,181,706.57
  5. Step 5: Solve for x
    x = 369,181,706.57/22,149.63
  6. Step 6: Final answer
    x = 16,667.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.