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Finding the Fourth Proportional to 53,565.78, 73,920.78 and 29,696.09

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Solution

The fourth proportional to 53,565.78, 73,920.78 and 29,696.09 is: 40,980.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,565.78 : 73,920.78 = 29,696.09 : x
  2. Step 2: Convert to fraction form
    53,565.78/73,920.78 = 29,696.09/x
  3. Step 3: Cross multiply
    53,565.78x = 73,920.78 × 29,696.09
  4. Step 4: Simplify right side
    53,565.78x = 2,195,158,135.75
  5. Step 5: Solve for x
    x = 2,195,158,135.75/53,565.78
  6. Step 6: Final answer
    x = 40,980.61

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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.