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Finding the Fourth Proportional to 6,860.74, 10,292.54 and 3,900.54

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Solution

The fourth proportional to 6,860.74, 10,292.54 and 3,900.54 is: 5,851.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.74 : 10,292.54 = 3,900.54 : x
  2. Step 2: Convert to fraction form
    6,860.74/10,292.54 = 3,900.54/x
  3. Step 3: Cross multiply
    6,860.74x = 10,292.54 × 3,900.54
  4. Step 4: Simplify right side
    6,860.74x = 40,146,463.97
  5. Step 5: Solve for x
    x = 40,146,463.97/6,860.74
  6. Step 6: Final answer
    x = 5,851.62

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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.