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Finding the Fourth Proportional to 39,049.97, 53,888.83 and 21,144.98

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Solution

The fourth proportional to 39,049.97, 53,888.83 and 21,144.98 is: 29,180.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,049.97 : 53,888.83 = 21,144.98 : x
  2. Step 2: Convert to fraction form
    39,049.97/53,888.83 = 21,144.98/x
  3. Step 3: Cross multiply
    39,049.97x = 53,888.83 × 21,144.98
  4. Step 4: Simplify right side
    39,049.97x = 1,139,478,314.43
  5. Step 5: Solve for x
    x = 1,139,478,314.43/39,049.97
  6. Step 6: Final answer
    x = 29,180.01

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.