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Finding the Fourth Proportional to 61,186.46, 84,446.11 and 33,968.79

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Solution

The fourth proportional to 61,186.46, 84,446.11 and 33,968.79 is: 46,881.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,186.46 : 84,446.11 = 33,968.79 : x
  2. Step 2: Convert to fraction form
    61,186.46/84,446.11 = 33,968.79/x
  3. Step 3: Cross multiply
    61,186.46x = 84,446.11 × 33,968.79
  4. Step 4: Simplify right side
    61,186.46x = 2,868,532,091.98
  5. Step 5: Solve for x
    x = 2,868,532,091.98/61,186.46
  6. Step 6: Final answer
    x = 46,881.81

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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.