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Finding the Fourth Proportional to 7,793.58, 11,671.74 and 4,278.18

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Solution

The fourth proportional to 7,793.58, 11,671.74 and 4,278.18 is: 6,407.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,793.58 : 11,671.74 = 4,278.18 : x
  2. Step 2: Convert to fraction form
    7,793.58/11,671.74 = 4,278.18/x
  3. Step 3: Cross multiply
    7,793.58x = 11,671.74 × 4,278.18
  4. Step 4: Simplify right side
    7,793.58x = 49,933,804.63
  5. Step 5: Solve for x
    x = 49,933,804.63/7,793.58
  6. Step 6: Final answer
    x = 6,407.04

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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.