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Finding the Fourth Proportional to 12,156.01, 18,234.02 and 2,922.01

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Solution

The fourth proportional to 12,156.01, 18,234.02 and 2,922.01 is: 4,383.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.01 : 18,234.02 = 2,922.01 : x
  2. Step 2: Convert to fraction form
    12,156.01/18,234.02 = 2,922.01/x
  3. Step 3: Cross multiply
    12,156.01x = 18,234.02 × 2,922.01
  4. Step 4: Simplify right side
    12,156.01x = 53,279,950.50
  5. Step 5: Solve for x
    x = 53,279,950.50/12,156.01
  6. Step 6: Final answer
    x = 4,383.01

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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.