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Finding the Fourth Proportional to 66,276.98, 91,459.48 and 36,062.42

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Solution

The fourth proportional to 66,276.98, 91,459.48 and 36,062.42 is: 49,764.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,276.98 : 91,459.48 = 36,062.42 : x
  2. Step 2: Convert to fraction form
    66,276.98/91,459.48 = 36,062.42/x
  3. Step 3: Cross multiply
    66,276.98x = 91,459.48 × 36,062.42
  4. Step 4: Simplify right side
    66,276.98x = 3,298,250,180.74
  5. Step 5: Solve for x
    x = 3,298,250,180.74/66,276.98
  6. Step 6: Final answer
    x = 49,764.64

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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.