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Finding the Fourth Proportional to 64,321.08, 96,490.97 and 19,951.41

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Solution

The fourth proportional to 64,321.08, 96,490.97 and 19,951.41 is: 29,930.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,321.08 : 96,490.97 = 19,951.41 : x
  2. Step 2: Convert to fraction form
    64,321.08/96,490.97 = 19,951.41/x
  3. Step 3: Cross multiply
    64,321.08x = 96,490.97 × 19,951.41
  4. Step 4: Simplify right side
    64,321.08x = 1,925,130,903.77
  5. Step 5: Solve for x
    x = 1,925,130,903.77/64,321.08
  6. Step 6: Final answer
    x = 29,930.02

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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.