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Finding the Fourth Proportional to 55,866.86, 77,020.80 and 37,930.73

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Solution

The fourth proportional to 55,866.86, 77,020.80 and 37,930.73 is: 52,293.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,866.86 : 77,020.80 = 37,930.73 : x
  2. Step 2: Convert to fraction form
    55,866.86/77,020.80 = 37,930.73/x
  3. Step 3: Cross multiply
    55,866.86x = 77,020.80 × 37,930.73
  4. Step 4: Simplify right side
    55,866.86x = 2,921,454,784.08
  5. Step 5: Solve for x
    x = 2,921,454,784.08/55,866.86
  6. Step 6: Final answer
    x = 52,293.17

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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.