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Finding the Fourth Proportional to 11,645.55, 17,471.12 and 5,073.62

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Solution

The fourth proportional to 11,645.55, 17,471.12 and 5,073.62 is: 7,611.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,645.55 : 17,471.12 = 5,073.62 : x
  2. Step 2: Convert to fraction form
    11,645.55/17,471.12 = 5,073.62/x
  3. Step 3: Cross multiply
    11,645.55x = 17,471.12 × 5,073.62
  4. Step 4: Simplify right side
    11,645.55x = 88,641,711.13
  5. Step 5: Solve for x
    x = 88,641,711.13/11,645.55
  6. Step 6: Final answer
    x = 7,611.64

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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.