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Finding the Fourth Proportional to 69,921.44, 96,490.72 and 38,089.66

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Solution

The fourth proportional to 69,921.44, 96,490.72 and 38,089.66 is: 52,563.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,921.44 : 96,490.72 = 38,089.66 : x
  2. Step 2: Convert to fraction form
    69,921.44/96,490.72 = 38,089.66/x
  3. Step 3: Cross multiply
    69,921.44x = 96,490.72 × 38,089.66
  4. Step 4: Simplify right side
    69,921.44x = 3,675,298,381.50
  5. Step 5: Solve for x
    x = 3,675,298,381.50/69,921.44
  6. Step 6: Final answer
    x = 52,563.25

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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.