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Finding the Fourth Proportional to 12,262.79, 16,932.21 and 9,425.70

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Solution

The fourth proportional to 12,262.79, 16,932.21 and 9,425.70 is: 13,014.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.79 : 16,932.21 = 9,425.70 : x
  2. Step 2: Convert to fraction form
    12,262.79/16,932.21 = 9,425.70/x
  3. Step 3: Cross multiply
    12,262.79x = 16,932.21 × 9,425.70
  4. Step 4: Simplify right side
    12,262.79x = 159,597,896.45
  5. Step 5: Solve for x
    x = 159,597,896.45/12,262.79
  6. Step 6: Final answer
    x = 13,014.81

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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.