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Finding the Fourth Proportional to 44,226.66, 66,340.22 and 12,640.46

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Solution

The fourth proportional to 44,226.66, 66,340.22 and 12,640.46 is: 18,960.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,226.66 : 66,340.22 = 12,640.46 : x
  2. Step 2: Convert to fraction form
    44,226.66/66,340.22 = 12,640.46/x
  3. Step 3: Cross multiply
    44,226.66x = 66,340.22 × 12,640.46
  4. Step 4: Simplify right side
    44,226.66x = 838,570,502.40
  5. Step 5: Solve for x
    x = 838,570,502.40/44,226.66
  6. Step 6: Final answer
    x = 18,960.75

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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.