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Finding the Fourth Proportional to 17,990.98, 26,970.13 and 6,297.82

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Solution

The fourth proportional to 17,990.98, 26,970.13 and 6,297.82 is: 9,441.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,990.98 : 26,970.13 = 6,297.82 : x
  2. Step 2: Convert to fraction form
    17,990.98/26,970.13 = 6,297.82/x
  3. Step 3: Cross multiply
    17,990.98x = 26,970.13 × 6,297.82
  4. Step 4: Simplify right side
    17,990.98x = 169,853,024.12
  5. Step 5: Solve for x
    x = 169,853,024.12/17,990.98
  6. Step 6: Final answer
    x = 9,441.01

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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.