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Finding the Fourth Proportional to 8,093.60, 12,138.48 and 3,708.32

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Solution

The fourth proportional to 8,093.60, 12,138.48 and 3,708.32 is: 5,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,093.60 : 12,138.48 = 3,708.32 : x
  2. Step 2: Convert to fraction form
    8,093.60/12,138.48 = 3,708.32/x
  3. Step 3: Cross multiply
    8,093.60x = 12,138.48 × 3,708.32
  4. Step 4: Simplify right side
    8,093.60x = 45,013,368.15
  5. Step 5: Solve for x
    x = 45,013,368.15/8,093.60
  6. Step 6: Final answer
    x = 5,561.60

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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.