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Finding the Fourth Proportional to 55,866.36, 77,020.11 and 37,930.22

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Solution

The fourth proportional to 55,866.36, 77,020.11 and 37,930.22 is: 52,292.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,866.36 : 77,020.11 = 37,930.22 : x
  2. Step 2: Convert to fraction form
    55,866.36/77,020.11 = 37,930.22/x
  3. Step 3: Cross multiply
    55,866.36x = 77,020.11 × 37,930.22
  4. Step 4: Simplify right side
    55,866.36x = 2,921,389,716.72
  5. Step 5: Solve for x
    x = 2,921,389,716.72/55,866.36
  6. Step 6: Final answer
    x = 52,292.47

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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.