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Finding the Fourth Proportional to 3,098.63, 4,276.32 and 1,772.66

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Solution

The fourth proportional to 3,098.63, 4,276.32 and 1,772.66 is: 2,446.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.63 : 4,276.32 = 1,772.66 : x
  2. Step 2: Convert to fraction form
    3,098.63/4,276.32 = 1,772.66/x
  3. Step 3: Cross multiply
    3,098.63x = 4,276.32 × 1,772.66
  4. Step 4: Simplify right side
    3,098.63x = 7,580,461.41
  5. Step 5: Solve for x
    x = 7,580,461.41/3,098.63
  6. Step 6: Final answer
    x = 2,446.39

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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.