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Finding the Fourth Proportional to 66,252.83, 91,429.77 and 37,958.45

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Solution

The fourth proportional to 66,252.83, 91,429.77 and 37,958.45 is: 52,383.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,252.83 : 91,429.77 = 37,958.45 : x
  2. Step 2: Convert to fraction form
    66,252.83/91,429.77 = 37,958.45/x
  3. Step 3: Cross multiply
    66,252.83x = 91,429.77 × 37,958.45
  4. Step 4: Simplify right side
    66,252.83x = 3,470,531,895.91
  5. Step 5: Solve for x
    x = 3,470,531,895.91/66,252.83
  6. Step 6: Final answer
    x = 52,383.15

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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.