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Finding the Fourth Proportional to 11,954.50, 16,497.74 and 6,918.96

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Solution

The fourth proportional to 11,954.50, 16,497.74 and 6,918.96 is: 9,548.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,954.50 : 16,497.74 = 6,918.96 : x
  2. Step 2: Convert to fraction form
    11,954.50/16,497.74 = 6,918.96/x
  3. Step 3: Cross multiply
    11,954.50x = 16,497.74 × 6,918.96
  4. Step 4: Simplify right side
    11,954.50x = 114,147,203.15
  5. Step 5: Solve for x
    x = 114,147,203.15/11,954.50
  6. Step 6: Final answer
    x = 9,548.47

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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.