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Finding the Fourth Proportional to 17,903.90, 26,859.73 and 6,810.80

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Solution

The fourth proportional to 17,903.90, 26,859.73 and 6,810.80 is: 10,217.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,903.90 : 26,859.73 = 6,810.80 : x
  2. Step 2: Convert to fraction form
    17,903.90/26,859.73 = 6,810.80/x
  3. Step 3: Cross multiply
    17,903.90x = 26,859.73 × 6,810.80
  4. Step 4: Simplify right side
    17,903.90x = 182,936,249.08
  5. Step 5: Solve for x
    x = 182,936,249.08/17,903.90
  6. Step 6: Final answer
    x = 10,217.68

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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.