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Finding the Fourth Proportional to 11,847.90, 17,772.02 and 11,487.06

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Solution

The fourth proportional to 11,847.90, 17,772.02 and 11,487.06 is: 17,230.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,847.90 : 17,772.02 = 11,487.06 : x
  2. Step 2: Convert to fraction form
    11,847.90/17,772.02 = 11,487.06/x
  3. Step 3: Cross multiply
    11,847.90x = 17,772.02 × 11,487.06
  4. Step 4: Simplify right side
    11,847.90x = 204,148,260.06
  5. Step 5: Solve for x
    x = 204,148,260.06/11,847.90
  6. Step 6: Final answer
    x = 17,230.75

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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.