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Finding the Fourth Proportional to 22,064.00, 30,447.70 and 11,992.12

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Solution

The fourth proportional to 22,064.00, 30,447.70 and 11,992.12 is: 16,548.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,064.00 : 30,447.70 = 11,992.12 : x
  2. Step 2: Convert to fraction form
    22,064.00/30,447.70 = 11,992.12/x
  3. Step 3: Cross multiply
    22,064.00x = 30,447.70 × 11,992.12
  4. Step 4: Simplify right side
    22,064.00x = 365,132,366.02
  5. Step 5: Solve for x
    x = 365,132,366.02/22,064.00
  6. Step 6: Final answer
    x = 16,548.79

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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.