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Finding the Fourth Proportional to 4,641.22, 6,961.19 and 1,520.86

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Solution

The fourth proportional to 4,641.22, 6,961.19 and 1,520.86 is: 2,281.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,641.22 : 6,961.19 = 1,520.86 : x
  2. Step 2: Convert to fraction form
    4,641.22/6,961.19 = 1,520.86/x
  3. Step 3: Cross multiply
    4,641.22x = 6,961.19 × 1,520.86
  4. Step 4: Simplify right side
    4,641.22x = 10,586,977.34
  5. Step 5: Solve for x
    x = 10,586,977.34/4,641.22
  6. Step 6: Final answer
    x = 2,281.07

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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.