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Finding the Fourth Proportional to 64,761.05, 97,147.04 and 18,013.92

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Solution

The fourth proportional to 64,761.05, 97,147.04 and 18,013.92 is: 27,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,761.05 : 97,147.04 = 18,013.92 : x
  2. Step 2: Convert to fraction form
    64,761.05/97,147.04 = 18,013.92/x
  3. Step 3: Cross multiply
    64,761.05x = 97,147.04 × 18,013.92
  4. Step 4: Simplify right side
    64,761.05x = 1,749,999,006.80
  5. Step 5: Solve for x
    x = 1,749,999,006.80/64,761.05
  6. Step 6: Final answer
    x = 27,022.40

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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.