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Finding the Fourth Proportional to 6,963.84, 9,606.72 and 5,072.49

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Solution

The fourth proportional to 6,963.84, 9,606.72 and 5,072.49 is: 6,997.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,963.84 : 9,606.72 = 5,072.49 : x
  2. Step 2: Convert to fraction form
    6,963.84/9,606.72 = 5,072.49/x
  3. Step 3: Cross multiply
    6,963.84x = 9,606.72 × 5,072.49
  4. Step 4: Simplify right side
    6,963.84x = 48,729,991.13
  5. Step 5: Solve for x
    x = 48,729,991.13/6,963.84
  6. Step 6: Final answer
    x = 6,997.57

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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.