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Finding the Fourth Proportional to 16,942.84, 25,443.42 and 9,157.12

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Solution

The fourth proportional to 16,942.84, 25,443.42 and 9,157.12 is: 13,751.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,942.84 : 25,443.42 = 9,157.12 : x
  2. Step 2: Convert to fraction form
    16,942.84/25,443.42 = 9,157.12/x
  3. Step 3: Cross multiply
    16,942.84x = 25,443.42 × 9,157.12
  4. Step 4: Simplify right side
    16,942.84x = 232,988,450.15
  5. Step 5: Solve for x
    x = 232,988,450.15/16,942.84
  6. Step 6: Final answer
    x = 13,751.44

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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.