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Finding the Fourth Proportional to 7,704.60, 11,532.60 and 5,517.60

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Solution

The fourth proportional to 7,704.60, 11,532.60 and 5,517.60 is: 8,259.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,704.60 : 11,532.60 = 5,517.60 : x
  2. Step 2: Convert to fraction form
    7,704.60/11,532.60 = 5,517.60/x
  3. Step 3: Cross multiply
    7,704.60x = 11,532.60 × 5,517.60
  4. Step 4: Simplify right side
    7,704.60x = 63,632,273.76
  5. Step 5: Solve for x
    x = 63,632,273.76/7,704.60
  6. Step 6: Final answer
    x = 8,259.00

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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.