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Finding the Fourth Proportional to 6,690.39, 10,039.16 and 5,035.56

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Solution

The fourth proportional to 6,690.39, 10,039.16 and 5,035.56 is: 7,556.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.39 : 10,039.16 = 5,035.56 : x
  2. Step 2: Convert to fraction form
    6,690.39/10,039.16 = 5,035.56/x
  3. Step 3: Cross multiply
    6,690.39x = 10,039.16 × 5,035.56
  4. Step 4: Simplify right side
    6,690.39x = 50,552,792.53
  5. Step 5: Solve for x
    x = 50,552,792.53/6,690.39
  6. Step 6: Final answer
    x = 7,556.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.