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Finding the Fourth Proportional to 9,342.97, 12,893.39 and 5,151.37

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Solution

The fourth proportional to 9,342.97, 12,893.39 and 5,151.37 is: 7,108.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,342.97 : 12,893.39 = 5,151.37 : x
  2. Step 2: Convert to fraction form
    9,342.97/12,893.39 = 5,151.37/x
  3. Step 3: Cross multiply
    9,342.97x = 12,893.39 × 5,151.37
  4. Step 4: Simplify right side
    9,342.97x = 66,418,622.44
  5. Step 5: Solve for x
    x = 66,418,622.44/9,342.97
  6. Step 6: Final answer
    x = 7,108.94

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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.