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Finding the Fourth Proportional to 59,278.71, 81,801.09 and 33,781.53

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Solution

The fourth proportional to 59,278.71, 81,801.09 and 33,781.53 is: 46,616.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,278.71 : 81,801.09 = 33,781.53 : x
  2. Step 2: Convert to fraction form
    59,278.71/81,801.09 = 33,781.53/x
  3. Step 3: Cross multiply
    59,278.71x = 81,801.09 × 33,781.53
  4. Step 4: Simplify right side
    59,278.71x = 2,763,365,975.87
  5. Step 5: Solve for x
    x = 2,763,365,975.87/59,278.71
  6. Step 6: Final answer
    x = 46,616.50

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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.