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Finding the Fourth Proportional to 61,659.30, 92,493.06 and 17,287.80

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Solution

The fourth proportional to 61,659.30, 92,493.06 and 17,287.80 is: 25,932.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,659.30 : 92,493.06 = 17,287.80 : x
  2. Step 2: Convert to fraction form
    61,659.30/92,493.06 = 17,287.80/x
  3. Step 3: Cross multiply
    61,659.30x = 92,493.06 × 17,287.80
  4. Step 4: Simplify right side
    61,659.30x = 1,599,001,522.67
  5. Step 5: Solve for x
    x = 1,599,001,522.67/61,659.30
  6. Step 6: Final answer
    x = 25,932.85

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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.