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Finding the Fourth Proportional to 22,129.56, 33,192.52 and 7,333.64

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Solution

The fourth proportional to 22,129.56, 33,192.52 and 7,333.64 is: 10,999.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,129.56 : 33,192.52 = 7,333.64 : x
  2. Step 2: Convert to fraction form
    22,129.56/33,192.52 = 7,333.64/x
  3. Step 3: Cross multiply
    22,129.56x = 33,192.52 × 7,333.64
  4. Step 4: Simplify right side
    22,129.56x = 243,421,992.37
  5. Step 5: Solve for x
    x = 243,421,992.37/22,129.56
  6. Step 6: Final answer
    x = 10,999.86

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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.