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Finding the Fourth Proportional to 44,640.90, 66,961.28 and 18,327.11

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Solution

The fourth proportional to 44,640.90, 66,961.28 and 18,327.11 is: 27,490.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,640.90 : 66,961.28 = 18,327.11 : x
  2. Step 2: Convert to fraction form
    44,640.90/66,961.28 = 18,327.11/x
  3. Step 3: Cross multiply
    44,640.90x = 66,961.28 × 18,327.11
  4. Step 4: Simplify right side
    44,640.90x = 1,227,206,455.31
  5. Step 5: Solve for x
    x = 1,227,206,455.31/44,640.90
  6. Step 6: Final answer
    x = 27,490.63

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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.