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Finding the Fourth Proportional to 8,493.56, 11,707.98 and 6,918.92

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Solution

The fourth proportional to 8,493.56, 11,707.98 and 6,918.92 is: 9,537.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,493.56 : 11,707.98 = 6,918.92 : x
  2. Step 2: Convert to fraction form
    8,493.56/11,707.98 = 6,918.92/x
  3. Step 3: Cross multiply
    8,493.56x = 11,707.98 × 6,918.92
  4. Step 4: Simplify right side
    8,493.56x = 81,006,576.98
  5. Step 5: Solve for x
    x = 81,006,576.98/8,493.56
  6. Step 6: Final answer
    x = 9,537.41

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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.