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Finding the Fourth Proportional to 61,519.84, 92,279.79 and 17,147.77

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Solution

The fourth proportional to 61,519.84, 92,279.79 and 17,147.77 is: 25,721.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,519.84 : 92,279.79 = 17,147.77 : x
  2. Step 2: Convert to fraction form
    61,519.84/92,279.79 = 17,147.77/x
  3. Step 3: Cross multiply
    61,519.84x = 92,279.79 × 17,147.77
  4. Step 4: Simplify right side
    61,519.84x = 1,582,392,383.87
  5. Step 5: Solve for x
    x = 1,582,392,383.87/61,519.84
  6. Step 6: Final answer
    x = 25,721.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.