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Finding the Fourth Proportional to 22,194.87, 30,628.87 and 12,123.33

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Solution

The fourth proportional to 22,194.87, 30,628.87 and 12,123.33 is: 16,730.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,194.87 : 30,628.87 = 12,123.33 : x
  2. Step 2: Convert to fraction form
    22,194.87/30,628.87 = 12,123.33/x
  3. Step 3: Cross multiply
    22,194.87x = 30,628.87 × 12,123.33
  4. Step 4: Simplify right side
    22,194.87x = 371,323,898.54
  5. Step 5: Solve for x
    x = 371,323,898.54/22,194.87
  6. Step 6: Final answer
    x = 16,730.17

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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.