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Finding the Fourth Proportional to 12,874.60, 17,763.06 and 9,362.44

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Solution

The fourth proportional to 12,874.60, 17,763.06 and 9,362.44 is: 12,917.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,874.60 : 17,763.06 = 9,362.44 : x
  2. Step 2: Convert to fraction form
    12,874.60/17,763.06 = 9,362.44/x
  3. Step 3: Cross multiply
    12,874.60x = 17,763.06 × 9,362.44
  4. Step 4: Simplify right side
    12,874.60x = 166,305,583.47
  5. Step 5: Solve for x
    x = 166,305,583.47/12,874.60
  6. Step 6: Final answer
    x = 12,917.34

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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.