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Finding the Fourth Proportional to 66,467.68, 91,723.16 and 39,596.27

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Solution

The fourth proportional to 66,467.68, 91,723.16 and 39,596.27 is: 54,641.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,467.68 : 91,723.16 = 39,596.27 : x
  2. Step 2: Convert to fraction form
    66,467.68/91,723.16 = 39,596.27/x
  3. Step 3: Cross multiply
    66,467.68x = 91,723.16 × 39,596.27
  4. Step 4: Simplify right side
    66,467.68x = 3,631,895,008.61
  5. Step 5: Solve for x
    x = 3,631,895,008.61/66,467.68
  6. Step 6: Final answer
    x = 54,641.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.