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Finding the Fourth Proportional to 12,262.21, 16,921.92 and 6,673.21

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Solution

The fourth proportional to 12,262.21, 16,921.92 and 6,673.21 is: 9,209.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.21 : 16,921.92 = 6,673.21 : x
  2. Step 2: Convert to fraction form
    12,262.21/16,921.92 = 6,673.21/x
  3. Step 3: Cross multiply
    12,262.21x = 16,921.92 × 6,673.21
  4. Step 4: Simplify right side
    12,262.21x = 112,923,525.76
  5. Step 5: Solve for x
    x = 112,923,525.76/12,262.21
  6. Step 6: Final answer
    x = 9,209.07

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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.