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Finding the Fourth Proportional to 12,167.76, 18,251.64 and 2,933.76

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Solution

The fourth proportional to 12,167.76, 18,251.64 and 2,933.76 is: 4,400.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.76 : 18,251.64 = 2,933.76 : x
  2. Step 2: Convert to fraction form
    12,167.76/18,251.64 = 2,933.76/x
  3. Step 3: Cross multiply
    12,167.76x = 18,251.64 × 2,933.76
  4. Step 4: Simplify right side
    12,167.76x = 53,545,931.37
  5. Step 5: Solve for x
    x = 53,545,931.37/12,167.76
  6. Step 6: Final answer
    x = 4,400.64

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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.