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Finding the Fourth Proportional to 16,992.96, 25,497.78 and 7,639.58

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Solution

The fourth proportional to 16,992.96, 25,497.78 and 7,639.58 is: 11,463.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,992.96 : 25,497.78 = 7,639.58 : x
  2. Step 2: Convert to fraction form
    16,992.96/25,497.78 = 7,639.58/x
  3. Step 3: Cross multiply
    16,992.96x = 25,497.78 × 7,639.58
  4. Step 4: Simplify right side
    16,992.96x = 194,792,202.64
  5. Step 5: Solve for x
    x = 194,792,202.64/16,992.96
  6. Step 6: Final answer
    x = 11,463.11

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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.