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Finding the Fourth Proportional to 26,604.56, 39,835.56 and 20,847.80

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Solution

The fourth proportional to 26,604.56, 39,835.56 and 20,847.80 is: 31,215.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,604.56 : 39,835.56 = 20,847.80 : x
  2. Step 2: Convert to fraction form
    26,604.56/39,835.56 = 20,847.80/x
  3. Step 3: Cross multiply
    26,604.56x = 39,835.56 × 20,847.80
  4. Step 4: Simplify right side
    26,604.56x = 830,483,787.77
  5. Step 5: Solve for x
    x = 830,483,787.77/26,604.56
  6. Step 6: Final answer
    x = 31,215.84

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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.