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Finding the Fourth Proportional to 64,267.46, 96,405.67 and 19,888.37

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Solution

The fourth proportional to 64,267.46, 96,405.67 and 19,888.37 is: 29,833.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,267.46 : 96,405.67 = 19,888.37 : x
  2. Step 2: Convert to fraction form
    64,267.46/96,405.67 = 19,888.37/x
  3. Step 3: Cross multiply
    64,267.46x = 96,405.67 × 19,888.37
  4. Step 4: Simplify right side
    64,267.46x = 1,917,351,153.03
  5. Step 5: Solve for x
    x = 1,917,351,153.03/64,267.46
  6. Step 6: Final answer
    x = 29,833.94

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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.