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Finding the Fourth Proportional to 55,751.25, 76,926.80 and 31,552.10

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Solution

The fourth proportional to 55,751.25, 76,926.80 and 31,552.10 is: 43,536.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,751.25 : 76,926.80 = 31,552.10 : x
  2. Step 2: Convert to fraction form
    55,751.25/76,926.80 = 31,552.10/x
  3. Step 3: Cross multiply
    55,751.25x = 76,926.80 × 31,552.10
  4. Step 4: Simplify right side
    55,751.25x = 2,427,202,086.28
  5. Step 5: Solve for x
    x = 2,427,202,086.28/55,751.25
  6. Step 6: Final answer
    x = 43,536.28

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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.