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Finding the Fourth Proportional to 64,773.12, 97,146.72 and 18,013.44

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Solution

The fourth proportional to 64,773.12, 97,146.72 and 18,013.44 is: 27,016.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,773.12 : 97,146.72 = 18,013.44 : x
  2. Step 2: Convert to fraction form
    64,773.12/97,146.72 = 18,013.44/x
  3. Step 3: Cross multiply
    64,773.12x = 97,146.72 × 18,013.44
  4. Step 4: Simplify right side
    64,773.12x = 1,749,946,611.92
  5. Step 5: Solve for x
    x = 1,749,946,611.92/64,773.12
  6. Step 6: Final answer
    x = 27,016.56

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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.