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Finding the Fourth Proportional to 25,997.96, 35,844.63 and 21,697.22

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Solution

The fourth proportional to 25,997.96, 35,844.63 and 21,697.22 is: 29,914.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,997.96 : 35,844.63 = 21,697.22 : x
  2. Step 2: Convert to fraction form
    25,997.96/35,844.63 = 21,697.22/x
  3. Step 3: Cross multiply
    25,997.96x = 35,844.63 × 21,697.22
  4. Step 4: Simplify right side
    25,997.96x = 777,728,822.93
  5. Step 5: Solve for x
    x = 777,728,822.93/25,997.96
  6. Step 6: Final answer
    x = 29,914.99

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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.