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Finding the Fourth Proportional to 61,818.30, 92,712.60 and 17,449.20

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Solution

The fourth proportional to 61,818.30, 92,712.60 and 17,449.20 is: 26,169.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,818.30 : 92,712.60 = 17,449.20 : x
  2. Step 2: Convert to fraction form
    61,818.30/92,712.60 = 17,449.20/x
  3. Step 3: Cross multiply
    61,818.30x = 92,712.60 × 17,449.20
  4. Step 4: Simplify right side
    61,818.30x = 1,617,760,699.92
  5. Step 5: Solve for x
    x = 1,617,760,699.92/61,818.30
  6. Step 6: Final answer
    x = 26,169.61

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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.