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Finding the Fourth Proportional to 61,357.92, 92,037.03 and 18,663.72

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Solution

The fourth proportional to 61,357.92, 92,037.03 and 18,663.72 is: 27,995.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,357.92 : 92,037.03 = 18,663.72 : x
  2. Step 2: Convert to fraction form
    61,357.92/92,037.03 = 18,663.72/x
  3. Step 3: Cross multiply
    61,357.92x = 92,037.03 × 18,663.72
  4. Step 4: Simplify right side
    61,357.92x = 1,717,753,357.55
  5. Step 5: Solve for x
    x = 1,717,753,357.55/61,357.92
  6. Step 6: Final answer
    x = 27,995.63

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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.