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Finding the Fourth Proportional to 26,611.96, 39,923.80 and 7,893.46

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Solution

The fourth proportional to 26,611.96, 39,923.80 and 7,893.46 is: 11,841.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,611.96 : 39,923.80 = 7,893.46 : x
  2. Step 2: Convert to fraction form
    26,611.96/39,923.80 = 7,893.46/x
  3. Step 3: Cross multiply
    26,611.96x = 39,923.80 × 7,893.46
  4. Step 4: Simplify right side
    26,611.96x = 315,136,918.35
  5. Step 5: Solve for x
    x = 315,136,918.35/26,611.96
  6. Step 6: Final answer
    x = 11,841.93

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1.5x scale

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.