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Finding the Fourth Proportional to 11,708.82, 16,159.64 and 6,993

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Solution

The fourth proportional to 11,708.82, 16,159.64 and 6,993 is: 9,651.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,708.82 : 16,159.64 = 6,993 : x
  2. Step 2: Convert to fraction form
    11,708.82/16,159.64 = 6,993/x
  3. Step 3: Cross multiply
    11,708.82x = 16,159.64 × 6,993
  4. Step 4: Simplify right side
    11,708.82x = 113,004,327.56
  5. Step 5: Solve for x
    x = 113,004,327.56/11,708.82
  6. Step 6: Final answer
    x = 9,651.21

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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.