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Finding the Fourth Proportional to 44,553.88, 66,830.70 and 19,912.60

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Solution

The fourth proportional to 44,553.88, 66,830.70 and 19,912.60 is: 29,868.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,553.88 : 66,830.70 = 19,912.60 : x
  2. Step 2: Convert to fraction form
    44,553.88/66,830.70 = 19,912.60/x
  3. Step 3: Cross multiply
    44,553.88x = 66,830.70 × 19,912.60
  4. Step 4: Simplify right side
    44,553.88x = 1,330,772,996.82
  5. Step 5: Solve for x
    x = 1,330,772,996.82/44,553.88
  6. Step 6: Final answer
    x = 29,868.85

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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.