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Finding the Fourth Proportional to 69,854.25, 96,396.19 and 39,637.77

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Solution

The fourth proportional to 69,854.25, 96,396.19 and 39,637.77 is: 54,698.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,854.25 : 96,396.19 = 39,637.77 : x
  2. Step 2: Convert to fraction form
    69,854.25/96,396.19 = 39,637.77/x
  3. Step 3: Cross multiply
    69,854.25x = 96,396.19 × 39,637.77
  4. Step 4: Simplify right side
    69,854.25x = 3,820,929,327.93
  5. Step 5: Solve for x
    x = 3,820,929,327.93/69,854.25
  6. Step 6: Final answer
    x = 54,698.59

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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.