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Finding the Fourth Proportional to 12,967.22, 17,896.48 and 7,932.26

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Solution

The fourth proportional to 12,967.22, 17,896.48 and 7,932.26 is: 10,947.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,967.22 : 17,896.48 = 7,932.26 : x
  2. Step 2: Convert to fraction form
    12,967.22/17,896.48 = 7,932.26/x
  3. Step 3: Cross multiply
    12,967.22x = 17,896.48 × 7,932.26
  4. Step 4: Simplify right side
    12,967.22x = 141,959,557.36
  5. Step 5: Solve for x
    x = 141,959,557.36/12,967.22
  6. Step 6: Final answer
    x = 10,947.57

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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.