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Finding the Fourth Proportional to 9,379.26, 12,943.26 and 5,653.26

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Solution

The fourth proportional to 9,379.26, 12,943.26 and 5,653.26 is: 7,801.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,379.26 : 12,943.26 = 5,653.26 : x
  2. Step 2: Convert to fraction form
    9,379.26/12,943.26 = 5,653.26/x
  3. Step 3: Cross multiply
    9,379.26x = 12,943.26 × 5,653.26
  4. Step 4: Simplify right side
    9,379.26x = 73,171,614.03
  5. Step 5: Solve for x
    x = 73,171,614.03/9,379.26
  6. Step 6: Final answer
    x = 7,801.43

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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.