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Finding the Fourth Proportional to 17,100.68, 25,651.02 and 13,659.80

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Solution

The fourth proportional to 17,100.68, 25,651.02 and 13,659.80 is: 20,489.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,100.68 : 25,651.02 = 13,659.80 : x
  2. Step 2: Convert to fraction form
    17,100.68/25,651.02 = 13,659.80/x
  3. Step 3: Cross multiply
    17,100.68x = 25,651.02 × 13,659.80
  4. Step 4: Simplify right side
    17,100.68x = 350,387,803.00
  5. Step 5: Solve for x
    x = 350,387,803.00/17,100.68
  6. Step 6: Final answer
    x = 20,489.70

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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.