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Finding the Fourth Proportional to 3,099.61, 4,276.11 and 1,772.83

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Solution

The fourth proportional to 3,099.61, 4,276.11 and 1,772.83 is: 2,445.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.61 : 4,276.11 = 1,772.83 : x
  2. Step 2: Convert to fraction form
    3,099.61/4,276.11 = 1,772.83/x
  3. Step 3: Cross multiply
    3,099.61x = 4,276.11 × 1,772.83
  4. Step 4: Simplify right side
    3,099.61x = 7,580,816.09
  5. Step 5: Solve for x
    x = 7,580,816.09/3,099.61
  6. Step 6: Final answer
    x = 2,445.73

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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.