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Finding the Fourth Proportional to 66,036.82, 91,108.65 and 37,722.46

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Solution

The fourth proportional to 66,036.82, 91,108.65 and 37,722.46 is: 52,044.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,036.82 : 91,108.65 = 37,722.46 : x
  2. Step 2: Convert to fraction form
    66,036.82/91,108.65 = 37,722.46/x
  3. Step 3: Cross multiply
    66,036.82x = 91,108.65 × 37,722.46
  4. Step 4: Simplify right side
    66,036.82x = 3,436,842,405.28
  5. Step 5: Solve for x
    x = 3,436,842,405.28/66,036.82
  6. Step 6: Final answer
    x = 52,044.34

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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.