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Finding the Fourth Proportional to 57,825.97, 79,755.80 and 49,773.32

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Solution

The fourth proportional to 57,825.97, 79,755.80 and 49,773.32 is: 68,649.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,825.97 : 79,755.80 = 49,773.32 : x
  2. Step 2: Convert to fraction form
    57,825.97/79,755.80 = 49,773.32/x
  3. Step 3: Cross multiply
    57,825.97x = 79,755.80 × 49,773.32
  4. Step 4: Simplify right side
    57,825.97x = 3,969,710,955.26
  5. Step 5: Solve for x
    x = 3,969,710,955.26/57,825.97
  6. Step 6: Final answer
    x = 68,649.28

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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.