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Finding the Fourth Proportional to 18,245.94, 27,357.36 and 7,710.54

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Solution

The fourth proportional to 18,245.94, 27,357.36 and 7,710.54 is: 11,560.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.94 : 27,357.36 = 7,710.54 : x
  2. Step 2: Convert to fraction form
    18,245.94/27,357.36 = 7,710.54/x
  3. Step 3: Cross multiply
    18,245.94x = 27,357.36 × 7,710.54
  4. Step 4: Simplify right side
    18,245.94x = 210,940,018.57
  5. Step 5: Solve for x
    x = 210,940,018.57/18,245.94
  6. Step 6: Final answer
    x = 11,560.93

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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.