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Finding the Fourth Proportional to 27,468.70, 41,203.05 and 20,907.70

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Solution

The fourth proportional to 27,468.70, 41,203.05 and 20,907.70 is: 31,361.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,468.70 : 41,203.05 = 20,907.70 : x
  2. Step 2: Convert to fraction form
    27,468.70/41,203.05 = 20,907.70/x
  3. Step 3: Cross multiply
    27,468.70x = 41,203.05 × 20,907.70
  4. Step 4: Simplify right side
    27,468.70x = 861,461,008.49
  5. Step 5: Solve for x
    x = 861,461,008.49/27,468.70
  6. Step 6: Final answer
    x = 31,361.55

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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.