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Finding the Fourth Proportional to 7,928.02, 11,892.14 and 3,768.45

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Solution

The fourth proportional to 7,928.02, 11,892.14 and 3,768.45 is: 5,652.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.02 : 11,892.14 = 3,768.45 : x
  2. Step 2: Convert to fraction form
    7,928.02/11,892.14 = 3,768.45/x
  3. Step 3: Cross multiply
    7,928.02x = 11,892.14 × 3,768.45
  4. Step 4: Simplify right side
    7,928.02x = 44,814,934.98
  5. Step 5: Solve for x
    x = 44,814,934.98/7,928.02
  6. Step 6: Final answer
    x = 5,652.73

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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.