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Finding the Fourth Proportional to 44,072.88, 66,053.16 and 20,647.68

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Solution

The fourth proportional to 44,072.88, 66,053.16 and 20,647.68 is: 30,945.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,072.88 : 66,053.16 = 20,647.68 : x
  2. Step 2: Convert to fraction form
    44,072.88/66,053.16 = 20,647.68/x
  3. Step 3: Cross multiply
    44,072.88x = 66,053.16 × 20,647.68
  4. Step 4: Simplify right side
    44,072.88x = 1,363,844,510.67
  5. Step 5: Solve for x
    x = 1,363,844,510.67/44,072.88
  6. Step 6: Final answer
    x = 30,945.21

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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.