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Finding the Fourth Proportional to 7,504.60, 11,256.90 and 6,739.15

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Solution

The fourth proportional to 7,504.60, 11,256.90 and 6,739.15 is: 10,108.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,504.60 : 11,256.90 = 6,739.15 : x
  2. Step 2: Convert to fraction form
    7,504.60/11,256.90 = 6,739.15/x
  3. Step 3: Cross multiply
    7,504.60x = 11,256.90 × 6,739.15
  4. Step 4: Simplify right side
    7,504.60x = 75,861,937.64
  5. Step 5: Solve for x
    x = 75,861,937.64/7,504.60
  6. Step 6: Final answer
    x = 10,108.73

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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.