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Finding the Fourth Proportional to 3,512.91, 4,848.06 and 1,940.97

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Solution

The fourth proportional to 3,512.91, 4,848.06 and 1,940.97 is: 2,678.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.91 : 4,848.06 = 1,940.97 : x
  2. Step 2: Convert to fraction form
    3,512.91/4,848.06 = 1,940.97/x
  3. Step 3: Cross multiply
    3,512.91x = 4,848.06 × 1,940.97
  4. Step 4: Simplify right side
    3,512.91x = 9,409,939.02
  5. Step 5: Solve for x
    x = 9,409,939.02/3,512.91
  6. Step 6: Final answer
    x = 2,678.67

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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.