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Finding the Fourth Proportional to 64,247.99, 96,376.85 and 19,879.23

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Solution

The fourth proportional to 64,247.99, 96,376.85 and 19,879.23 is: 29,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,247.99 : 96,376.85 = 19,879.23 : x
  2. Step 2: Convert to fraction form
    64,247.99/96,376.85 = 19,879.23/x
  3. Step 3: Cross multiply
    64,247.99x = 96,376.85 × 19,879.23
  4. Step 4: Simplify right side
    64,247.99x = 1,915,897,617.52
  5. Step 5: Solve for x
    x = 1,915,897,617.52/64,247.99
  6. Step 6: Final answer
    x = 29,820.35

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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.