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Finding the Fourth Proportional to 10,851.87, 14,972.94 and 6,375.81

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Solution

The fourth proportional to 10,851.87, 14,972.94 and 6,375.81 is: 8,797.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,851.87 : 14,972.94 = 6,375.81 : x
  2. Step 2: Convert to fraction form
    10,851.87/14,972.94 = 6,375.81/x
  3. Step 3: Cross multiply
    10,851.87x = 14,972.94 × 6,375.81
  4. Step 4: Simplify right side
    10,851.87x = 95,464,620.58
  5. Step 5: Solve for x
    x = 95,464,620.58/10,851.87
  6. Step 6: Final answer
    x = 8,797.07

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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.