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Finding the Fourth Proportional to 53,761.80, 74,189.64 and 29,562.72

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Solution

The fourth proportional to 53,761.80, 74,189.64 and 29,562.72 is: 40,795.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,761.80 : 74,189.64 = 29,562.72 : x
  2. Step 2: Convert to fraction form
    53,761.80/74,189.64 = 29,562.72/x
  3. Step 3: Cross multiply
    53,761.80x = 74,189.64 × 29,562.72
  4. Step 4: Simplify right side
    53,761.80x = 2,193,247,554.22
  5. Step 5: Solve for x
    x = 2,193,247,554.22/53,761.80
  6. Step 6: Final answer
    x = 40,795.65

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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.