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Finding the Fourth Proportional to 18,262.97, 27,394.64 and 5,782.76

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Solution

The fourth proportional to 18,262.97, 27,394.64 and 5,782.76 is: 8,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.97 : 27,394.64 = 5,782.76 : x
  2. Step 2: Convert to fraction form
    18,262.97/27,394.64 = 5,782.76/x
  3. Step 3: Cross multiply
    18,262.97x = 27,394.64 × 5,782.76
  4. Step 4: Simplify right side
    18,262.97x = 158,416,599.49
  5. Step 5: Solve for x
    x = 158,416,599.49/18,262.97
  6. Step 6: Final answer
    x = 8,674.20

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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.