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Finding the Fourth Proportional to 64,812.45, 97,223.40 and 22,687.86

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Solution

The fourth proportional to 64,812.45, 97,223.40 and 22,687.86 is: 34,033.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,812.45 : 97,223.40 = 22,687.86 : x
  2. Step 2: Convert to fraction form
    64,812.45/97,223.40 = 22,687.86/x
  3. Step 3: Cross multiply
    64,812.45x = 97,223.40 × 22,687.86
  4. Step 4: Simplify right side
    64,812.45x = 2,205,790,887.92
  5. Step 5: Solve for x
    x = 2,205,790,887.92/64,812.45
  6. Step 6: Final answer
    x = 34,033.44

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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.