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Finding the Fourth Proportional to 4,684.62, 7,026.44 and 1,221.86

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Solution

The fourth proportional to 4,684.62, 7,026.44 and 1,221.86 is: 1,832.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,684.62 : 7,026.44 = 1,221.86 : x
  2. Step 2: Convert to fraction form
    4,684.62/7,026.44 = 1,221.86/x
  3. Step 3: Cross multiply
    4,684.62x = 7,026.44 × 1,221.86
  4. Step 4: Simplify right side
    4,684.62x = 8,585,325.98
  5. Step 5: Solve for x
    x = 8,585,325.98/4,684.62
  6. Step 6: Final answer
    x = 1,832.66

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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.