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Finding the Fourth Proportional to 17,157.92, 25,734.81 and 7,787.99

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Solution

The fourth proportional to 17,157.92, 25,734.81 and 7,787.99 is: 11,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,157.92 : 25,734.81 = 7,787.99 : x
  2. Step 2: Convert to fraction form
    17,157.92/25,734.81 = 7,787.99/x
  3. Step 3: Cross multiply
    17,157.92x = 25,734.81 × 7,787.99
  4. Step 4: Simplify right side
    17,157.92x = 200,422,442.93
  5. Step 5: Solve for x
    x = 200,422,442.93/17,157.92
  6. Step 6: Final answer
    x = 11,681.05

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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.