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Finding the Fourth Proportional to 14,672.83, 21,996.09 and 5,310.65

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Solution

The fourth proportional to 14,672.83, 21,996.09 and 5,310.65 is: 7,961.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,672.83 : 21,996.09 = 5,310.65 : x
  2. Step 2: Convert to fraction form
    14,672.83/21,996.09 = 5,310.65/x
  3. Step 3: Cross multiply
    14,672.83x = 21,996.09 × 5,310.65
  4. Step 4: Simplify right side
    14,672.83x = 116,813,535.36
  5. Step 5: Solve for x
    x = 116,813,535.36/14,672.83
  6. Step 6: Final answer
    x = 7,961.21

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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.