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Finding the Fourth Proportional to 21,997.44, 32,999.65 and 7,956.02

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Solution

The fourth proportional to 21,997.44, 32,999.65 and 7,956.02 is: 11,935.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.44 : 32,999.65 = 7,956.02 : x
  2. Step 2: Convert to fraction form
    21,997.44/32,999.65 = 7,956.02/x
  3. Step 3: Cross multiply
    21,997.44x = 32,999.65 × 7,956.02
  4. Step 4: Simplify right side
    21,997.44x = 262,545,875.39
  5. Step 5: Solve for x
    x = 262,545,875.39/21,997.44
  6. Step 6: Final answer
    x = 11,935.29

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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.