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Finding the Fourth Proportional to 12,796.17, 19,194.25 and 7,989.02

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Solution

The fourth proportional to 12,796.17, 19,194.25 and 7,989.02 is: 11,983.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,796.17 : 19,194.25 = 7,989.02 : x
  2. Step 2: Convert to fraction form
    12,796.17/19,194.25 = 7,989.02/x
  3. Step 3: Cross multiply
    12,796.17x = 19,194.25 × 7,989.02
  4. Step 4: Simplify right side
    12,796.17x = 153,343,247.14
  5. Step 5: Solve for x
    x = 153,343,247.14/12,796.17
  6. Step 6: Final answer
    x = 11,983.53

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.