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Finding the Fourth Proportional to 12,608.26, 17,392.84 and 10,220.93

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Solution

The fourth proportional to 12,608.26, 17,392.84 and 10,220.93 is: 14,099.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608.26 : 17,392.84 = 10,220.93 : x
  2. Step 2: Convert to fraction form
    12,608.26/17,392.84 = 10,220.93/x
  3. Step 3: Cross multiply
    12,608.26x = 17,392.84 × 10,220.93
  4. Step 4: Simplify right side
    12,608.26x = 177,771,108.18
  5. Step 5: Solve for x
    x = 177,771,108.18/12,608.26
  6. Step 6: Final answer
    x = 14,099.58

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