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Finding the Fourth Proportional to 26,991.70, 37,241.07 and 17,431.99

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Solution

The fourth proportional to 26,991.70, 37,241.07 and 17,431.99 is: 24,051.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,991.70 : 37,241.07 = 17,431.99 : x
  2. Step 2: Convert to fraction form
    26,991.70/37,241.07 = 17,431.99/x
  3. Step 3: Cross multiply
    26,991.70x = 37,241.07 × 17,431.99
  4. Step 4: Simplify right side
    26,991.70x = 649,186,058.26
  5. Step 5: Solve for x
    x = 649,186,058.26/26,991.70
  6. Step 6: Final answer
    x = 24,051.32

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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.