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Finding the Fourth Proportional to 66,751.44, 92,116.16 and 36,536.64

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Solution

The fourth proportional to 66,751.44, 92,116.16 and 36,536.64 is: 50,420.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,751.44 : 92,116.16 = 36,536.64 : x
  2. Step 2: Convert to fraction form
    66,751.44/92,116.16 = 36,536.64/x
  3. Step 3: Cross multiply
    66,751.44x = 92,116.16 × 36,536.64
  4. Step 4: Simplify right side
    66,751.44x = 3,365,614,976.10
  5. Step 5: Solve for x
    x = 3,365,614,976.10/66,751.44
  6. Step 6: Final answer
    x = 50,420.11

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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.