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Finding the Fourth Proportional to 11,282.60, 16,919.10 and 4,706.60

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Solution

The fourth proportional to 11,282.60, 16,919.10 and 4,706.60 is: 7,057.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,282.60 : 16,919.10 = 4,706.60 : x
  2. Step 2: Convert to fraction form
    11,282.60/16,919.10 = 4,706.60/x
  3. Step 3: Cross multiply
    11,282.60x = 16,919.10 × 4,706.60
  4. Step 4: Simplify right side
    11,282.60x = 79,631,436.06
  5. Step 5: Solve for x
    x = 79,631,436.06/11,282.60
  6. Step 6: Final answer
    x = 7,057.90

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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.