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Finding the Fourth Proportional to 64,778.70, 97,174.53 and 23,215.98

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Solution

The fourth proportional to 64,778.70, 97,174.53 and 23,215.98 is: 34,826.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,778.70 : 97,174.53 = 23,215.98 : x
  2. Step 2: Convert to fraction form
    64,778.70/97,174.53 = 23,215.98/x
  3. Step 3: Cross multiply
    64,778.70x = 97,174.53 × 23,215.98
  4. Step 4: Simplify right side
    64,778.70x = 2,256,001,944.99
  5. Step 5: Solve for x
    x = 2,256,001,944.99/64,778.70
  6. Step 6: Final answer
    x = 34,826.29

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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.