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Finding the Fourth Proportional to 66,589.74, 91,896.57 and 38,295.45

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Solution

The fourth proportional to 66,589.74, 91,896.57 and 38,295.45 is: 52,849.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,589.74 : 91,896.57 = 38,295.45 : x
  2. Step 2: Convert to fraction form
    66,589.74/91,896.57 = 38,295.45/x
  3. Step 3: Cross multiply
    66,589.74x = 91,896.57 × 38,295.45
  4. Step 4: Simplify right side
    66,589.74x = 3,519,220,501.61
  5. Step 5: Solve for x
    x = 3,519,220,501.61/66,589.74
  6. Step 6: Final answer
    x = 52,849.29

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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.