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Finding the Fourth Proportional to 18,262.94, 27,391.84 and 7,177.41

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Solution

The fourth proportional to 18,262.94, 27,391.84 and 7,177.41 is: 10,765.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.94 : 27,391.84 = 7,177.41 : x
  2. Step 2: Convert to fraction form
    18,262.94/27,391.84 = 7,177.41/x
  3. Step 3: Cross multiply
    18,262.94x = 27,391.84 × 7,177.41
  4. Step 4: Simplify right side
    18,262.94x = 196,602,448.39
  5. Step 5: Solve for x
    x = 196,602,448.39/18,262.94
  6. Step 6: Final answer
    x = 10,765.11

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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.