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Finding the Fourth Proportional to 11,589.98, 15,996.96 and 6,810.98

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Solution

The fourth proportional to 11,589.98, 15,996.96 and 6,810.98 is: 9,400.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,589.98 : 15,996.96 = 6,810.98 : x
  2. Step 2: Convert to fraction form
    11,589.98/15,996.96 = 6,810.98/x
  3. Step 3: Cross multiply
    11,589.98x = 15,996.96 × 6,810.98
  4. Step 4: Simplify right side
    11,589.98x = 108,954,894.64
  5. Step 5: Solve for x
    x = 108,954,894.64/11,589.98
  6. Step 6: Final answer
    x = 9,400.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.