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Finding the Fourth Proportional to 17,909.68, 26,859.12 and 7,519.12

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Solution

The fourth proportional to 17,909.68, 26,859.12 and 7,519.12 is: 11,276.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,909.68 : 26,859.12 = 7,519.12 : x
  2. Step 2: Convert to fraction form
    17,909.68/26,859.12 = 7,519.12/x
  3. Step 3: Cross multiply
    17,909.68x = 26,859.12 × 7,519.12
  4. Step 4: Simplify right side
    17,909.68x = 201,956,946.37
  5. Step 5: Solve for x
    x = 201,956,946.37/17,909.68
  6. Step 6: Final answer
    x = 11,276.41

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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.