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Finding the Fourth Proportional to 66,459.44, 91,714.78 and 36,244.46

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Solution

The fourth proportional to 66,459.44, 91,714.78 and 36,244.46 is: 50,017.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,459.44 : 91,714.78 = 36,244.46 : x
  2. Step 2: Convert to fraction form
    66,459.44/91,714.78 = 36,244.46/x
  3. Step 3: Cross multiply
    66,459.44x = 91,714.78 × 36,244.46
  4. Step 4: Simplify right side
    66,459.44x = 3,324,152,949.71
  5. Step 5: Solve for x
    x = 3,324,152,949.71/66,459.44
  6. Step 6: Final answer
    x = 50,017.77

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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.