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Finding the Fourth Proportional to 54,304.67, 74,939.22 and 31,642.25

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Solution

The fourth proportional to 54,304.67, 74,939.22 and 31,642.25 is: 43,665.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,304.67 : 74,939.22 = 31,642.25 : x
  2. Step 2: Convert to fraction form
    54,304.67/74,939.22 = 31,642.25/x
  3. Step 3: Cross multiply
    54,304.67x = 74,939.22 × 31,642.25
  4. Step 4: Simplify right side
    54,304.67x = 2,371,245,159.35
  5. Step 5: Solve for x
    x = 2,371,245,159.35/54,304.67
  6. Step 6: Final answer
    x = 43,665.59

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1.5x scale

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.