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Finding the Fourth Proportional to 17,759.70, 26,640 and 6,072.84

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Solution

The fourth proportional to 17,759.70, 26,640 and 6,072.84 is: 9,109.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,759.70 : 26,640 = 6,072.84 : x
  2. Step 2: Convert to fraction form
    17,759.70/26,640 = 6,072.84/x
  3. Step 3: Cross multiply
    17,759.70x = 26,640 × 6,072.84
  4. Step 4: Simplify right side
    17,759.70x = 161,780,457.60
  5. Step 5: Solve for x
    x = 161,780,457.60/17,759.70
  6. Step 6: Final answer
    x = 9,109.41

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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.