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Finding the Fourth Proportional to 64,755.69, 97,141.77 and 18,008.61

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Solution

The fourth proportional to 64,755.69, 97,141.77 and 18,008.61 is: 27,015.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,755.69 : 97,141.77 = 18,008.61 : x
  2. Step 2: Convert to fraction form
    64,755.69/97,141.77 = 18,008.61/x
  3. Step 3: Cross multiply
    64,755.69x = 97,141.77 × 18,008.61
  4. Step 4: Simplify right side
    64,755.69x = 1,749,388,250.64
  5. Step 5: Solve for x
    x = 1,749,388,250.64/64,755.69
  6. Step 6: Final answer
    x = 27,015.21

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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.