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Finding the Fourth Proportional to 64,759.81, 97,145.22 and 18,012.69

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Solution

The fourth proportional to 64,759.81, 97,145.22 and 18,012.69 is: 27,020.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,759.81 : 97,145.22 = 18,012.69 : x
  2. Step 2: Convert to fraction form
    64,759.81/97,145.22 = 18,012.69/x
  3. Step 3: Cross multiply
    64,759.81x = 97,145.22 × 18,012.69
  4. Step 4: Simplify right side
    64,759.81x = 1,749,846,732.84
  5. Step 5: Solve for x
    x = 1,749,846,732.84/64,759.81
  6. Step 6: Final answer
    x = 27,020.57

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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.