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Finding the Fourth Proportional to 13,463.54, 18,579.86 and 7,414.49

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Solution

The fourth proportional to 13,463.54, 18,579.86 and 7,414.49 is: 10,232.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,463.54 : 18,579.86 = 7,414.49 : x
  2. Step 2: Convert to fraction form
    13,463.54/18,579.86 = 7,414.49/x
  3. Step 3: Cross multiply
    13,463.54x = 18,579.86 × 7,414.49
  4. Step 4: Simplify right side
    13,463.54x = 137,760,186.17
  5. Step 5: Solve for x
    x = 137,760,186.17/13,463.54
  6. Step 6: Final answer
    x = 10,232.09

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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.