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Finding the Fourth Proportional to 64,570.53, 96,855.66 and 17,185.64

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Solution

The fourth proportional to 64,570.53, 96,855.66 and 17,185.64 is: 25,778.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,570.53 : 96,855.66 = 17,185.64 : x
  2. Step 2: Convert to fraction form
    64,570.53/96,855.66 = 17,185.64/x
  3. Step 3: Cross multiply
    64,570.53x = 96,855.66 × 17,185.64
  4. Step 4: Simplify right side
    64,570.53x = 1,664,526,020.44
  5. Step 5: Solve for x
    x = 1,664,526,020.44/64,570.53
  6. Step 6: Final answer
    x = 25,778.42

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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.