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Finding the Fourth Proportional to 7,696.87, 10,621.04 and 4,340.51

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Solution

The fourth proportional to 7,696.87, 10,621.04 and 4,340.51 is: 5,989.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,696.87 : 10,621.04 = 4,340.51 : x
  2. Step 2: Convert to fraction form
    7,696.87/10,621.04 = 4,340.51/x
  3. Step 3: Cross multiply
    7,696.87x = 10,621.04 × 4,340.51
  4. Step 4: Simplify right side
    7,696.87x = 46,100,730.33
  5. Step 5: Solve for x
    x = 46,100,730.33/7,696.87
  6. Step 6: Final answer
    x = 5,989.54

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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.