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Finding the Fourth Proportional to 11,552.87, 15,942.97 and 6,247.68

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Solution

The fourth proportional to 11,552.87, 15,942.97 and 6,247.68 is: 8,621.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,552.87 : 15,942.97 = 6,247.68 : x
  2. Step 2: Convert to fraction form
    11,552.87/15,942.97 = 6,247.68/x
  3. Step 3: Cross multiply
    11,552.87x = 15,942.97 × 6,247.68
  4. Step 4: Simplify right side
    11,552.87x = 99,606,574.81
  5. Step 5: Solve for x
    x = 99,606,574.81/11,552.87
  6. Step 6: Final answer
    x = 8,621.80

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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.