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Finding the Fourth Proportional to 12,736.85, 17,576.93 and 7,072.01

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Solution

The fourth proportional to 12,736.85, 17,576.93 and 7,072.01 is: 9,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736.85 : 17,576.93 = 7,072.01 : x
  2. Step 2: Convert to fraction form
    12,736.85/17,576.93 = 7,072.01/x
  3. Step 3: Cross multiply
    12,736.85x = 17,576.93 × 7,072.01
  4. Step 4: Simplify right side
    12,736.85x = 124,304,220.44
  5. Step 5: Solve for x
    x = 124,304,220.44/12,736.85
  6. Step 6: Final answer
    x = 9,759.42

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1.5x scale

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.