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Finding the Fourth Proportional to 64,409.92, 96,617.04 and 19,433.32

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Solution

The fourth proportional to 64,409.92, 96,617.04 and 19,433.32 is: 29,150.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,409.92 : 96,617.04 = 19,433.32 : x
  2. Step 2: Convert to fraction form
    64,409.92/96,617.04 = 19,433.32/x
  3. Step 3: Cross multiply
    64,409.92x = 96,617.04 × 19,433.32
  4. Step 4: Simplify right side
    64,409.92x = 1,877,589,855.77
  5. Step 5: Solve for x
    x = 1,877,589,855.77/64,409.92
  6. Step 6: Final answer
    x = 29,150.63

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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.