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Finding the Fourth Proportional to 26,611.76, 39,917.76 and 6,888.92

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Solution

The fourth proportional to 26,611.76, 39,917.76 and 6,888.92 is: 10,333.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,611.76 : 39,917.76 = 6,888.92 : x
  2. Step 2: Convert to fraction form
    26,611.76/39,917.76 = 6,888.92/x
  3. Step 3: Cross multiply
    26,611.76x = 39,917.76 × 6,888.92
  4. Step 4: Simplify right side
    26,611.76x = 274,990,255.22
  5. Step 5: Solve for x
    x = 274,990,255.22/26,611.76
  6. Step 6: Final answer
    x = 10,333.41

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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.