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Finding the Fourth Proportional to 18,548.64, 27,826.44 and 7,456.17

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Solution

The fourth proportional to 18,548.64, 27,826.44 and 7,456.17 is: 11,185.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,548.64 : 27,826.44 = 7,456.17 : x
  2. Step 2: Convert to fraction form
    18,548.64/27,826.44 = 7,456.17/x
  3. Step 3: Cross multiply
    18,548.64x = 27,826.44 × 7,456.17
  4. Step 4: Simplify right side
    18,548.64x = 207,478,667.13
  5. Step 5: Solve for x
    x = 207,478,667.13/18,548.64
  6. Step 6: Final answer
    x = 11,185.65

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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.