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Finding the Fourth Proportional to 61,580.88, 84,982.56 and 36,081.15

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Solution

The fourth proportional to 61,580.88, 84,982.56 and 36,081.15 is: 49,792.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,580.88 : 84,982.56 = 36,081.15 : x
  2. Step 2: Convert to fraction form
    61,580.88/84,982.56 = 36,081.15/x
  3. Step 3: Cross multiply
    61,580.88x = 84,982.56 × 36,081.15
  4. Step 4: Simplify right side
    61,580.88x = 3,066,268,494.74
  5. Step 5: Solve for x
    x = 3,066,268,494.74/61,580.88
  6. Step 6: Final answer
    x = 49,792.54

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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.