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Finding the Fourth Proportional to 4,816.89, 6,650.42 and 4,311.86

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Solution

The fourth proportional to 4,816.89, 6,650.42 and 4,311.86 is: 5,953.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,816.89 : 6,650.42 = 4,311.86 : x
  2. Step 2: Convert to fraction form
    4,816.89/6,650.42 = 4,311.86/x
  3. Step 3: Cross multiply
    4,816.89x = 6,650.42 × 4,311.86
  4. Step 4: Simplify right side
    4,816.89x = 28,675,625.17
  5. Step 5: Solve for x
    x = 28,675,625.17/4,816.89
  6. Step 6: Final answer
    x = 5,953.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.