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Finding the Fourth Proportional to 54,347.66, 74,965.25 and 39,262.48

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Solution

The fourth proportional to 54,347.66, 74,965.25 and 39,262.48 is: 54,157.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,347.66 : 74,965.25 = 39,262.48 : x
  2. Step 2: Convert to fraction form
    54,347.66/74,965.25 = 39,262.48/x
  3. Step 3: Cross multiply
    54,347.66x = 74,965.25 × 39,262.48
  4. Step 4: Simplify right side
    54,347.66x = 2,943,321,539.56
  5. Step 5: Solve for x
    x = 2,943,321,539.56/54,347.66
  6. Step 6: Final answer
    x = 54,157.29

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Why These Related Problems?

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