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Finding the Fourth Proportional to 17,471.21, 24,104.99 and 15,787.22

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Solution

The fourth proportional to 17,471.21, 24,104.99 and 15,787.22 is: 21,781.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,471.21 : 24,104.99 = 15,787.22 : x
  2. Step 2: Convert to fraction form
    17,471.21/24,104.99 = 15,787.22/x
  3. Step 3: Cross multiply
    17,471.21x = 24,104.99 × 15,787.22
  4. Step 4: Simplify right side
    17,471.21x = 380,550,580.77
  5. Step 5: Solve for x
    x = 380,550,580.77/17,471.21
  6. Step 6: Final answer
    x = 21,781.59

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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.