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Finding the Fourth Proportional to 12,796.11, 17,657.04 and 7,418.52

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Solution

The fourth proportional to 12,796.11, 17,657.04 and 7,418.52 is: 10,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,796.11 : 17,657.04 = 7,418.52 : x
  2. Step 2: Convert to fraction form
    12,796.11/17,657.04 = 7,418.52/x
  3. Step 3: Cross multiply
    12,796.11x = 17,657.04 × 7,418.52
  4. Step 4: Simplify right side
    12,796.11x = 130,989,104.38
  5. Step 5: Solve for x
    x = 130,989,104.38/12,796.11
  6. Step 6: Final answer
    x = 10,236.63

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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.