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Finding the Fourth Proportional to 26,657.37, 39,986.04 and 7,937.67

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Solution

The fourth proportional to 26,657.37, 39,986.04 and 7,937.67 is: 11,906.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,657.37 : 39,986.04 = 7,937.67 : x
  2. Step 2: Convert to fraction form
    26,657.37/39,986.04 = 7,937.67/x
  3. Step 3: Cross multiply
    26,657.37x = 39,986.04 × 7,937.67
  4. Step 4: Simplify right side
    26,657.37x = 317,395,990.13
  5. Step 5: Solve for x
    x = 317,395,990.13/26,657.37
  6. Step 6: Final answer
    x = 11,906.50

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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.