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Finding the Fourth Proportional to 16,845.80, 25,268.69 and 9,455.45

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Solution

The fourth proportional to 16,845.80, 25,268.69 and 9,455.45 is: 14,183.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,845.80 : 25,268.69 = 9,455.45 : x
  2. Step 2: Convert to fraction form
    16,845.80/25,268.69 = 9,455.45/x
  3. Step 3: Cross multiply
    16,845.80x = 25,268.69 × 9,455.45
  4. Step 4: Simplify right side
    16,845.80x = 238,926,732.16
  5. Step 5: Solve for x
    x = 238,926,732.16/16,845.80
  6. Step 6: Final answer
    x = 14,183.17

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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.