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Finding the Fourth Proportional to 16,919.60, 25,314.60 and 11,087.60

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Solution

The fourth proportional to 16,919.60, 25,314.60 and 11,087.60 is: 16,588.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,919.60 : 25,314.60 = 11,087.60 : x
  2. Step 2: Convert to fraction form
    16,919.60/25,314.60 = 11,087.60/x
  3. Step 3: Cross multiply
    16,919.60x = 25,314.60 × 11,087.60
  4. Step 4: Simplify right side
    16,919.60x = 280,678,158.96
  5. Step 5: Solve for x
    x = 280,678,158.96/16,919.60
  6. Step 6: Final answer
    x = 16,588.94

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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.