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Finding the Fourth Proportional to 17,990.55, 26,994.15 and 6,893.55

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Solution

The fourth proportional to 17,990.55, 26,994.15 and 6,893.55 is: 10,343.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,990.55 : 26,994.15 = 6,893.55 : x
  2. Step 2: Convert to fraction form
    17,990.55/26,994.15 = 6,893.55/x
  3. Step 3: Cross multiply
    17,990.55x = 26,994.15 × 6,893.55
  4. Step 4: Simplify right side
    17,990.55x = 186,085,522.73
  5. Step 5: Solve for x
    x = 186,085,522.73/17,990.55
  6. Step 6: Final answer
    x = 10,343.51

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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.