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Finding the Fourth Proportional to 64,779, 97,168.50 and 18,033.09

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Solution

The fourth proportional to 64,779, 97,168.50 and 18,033.09 is: 27,049.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,779 : 97,168.50 = 18,033.09 : x
  2. Step 2: Convert to fraction form
    64,779/97,168.50 = 18,033.09/x
  3. Step 3: Cross multiply
    64,779x = 97,168.50 × 18,033.09
  4. Step 4: Simplify right side
    64,779x = 1,752,248,305.67
  5. Step 5: Solve for x
    x = 1,752,248,305.67/64,779
  6. Step 6: Final answer
    x = 27,049.64

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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.