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Finding the Fourth Proportional to 11,797.20, 17,695.80 and 11,019.60

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Solution

The fourth proportional to 11,797.20, 17,695.80 and 11,019.60 is: 16,529.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,797.20 : 17,695.80 = 11,019.60 : x
  2. Step 2: Convert to fraction form
    11,797.20/17,695.80 = 11,019.60/x
  3. Step 3: Cross multiply
    11,797.20x = 17,695.80 × 11,019.60
  4. Step 4: Simplify right side
    11,797.20x = 195,000,637.68
  5. Step 5: Solve for x
    x = 195,000,637.68/11,797.20
  6. Step 6: Final answer
    x = 16,529.40

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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.