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Finding the Fourth Proportional to 17,900.90, 26,855.23 and 6,807.80

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Solution

The fourth proportional to 17,900.90, 26,855.23 and 6,807.80 is: 10,213.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,900.90 : 26,855.23 = 6,807.80 : x
  2. Step 2: Convert to fraction form
    17,900.90/26,855.23 = 6,807.80/x
  3. Step 3: Cross multiply
    17,900.90x = 26,855.23 × 6,807.80
  4. Step 4: Simplify right side
    17,900.90x = 182,825,034.79
  5. Step 5: Solve for x
    x = 182,825,034.79/17,900.90
  6. Step 6: Final answer
    x = 10,213.18

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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.