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Finding the Fourth Proportional to 4,888.92, 6,748.20 and 3,900.99

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Solution

The fourth proportional to 4,888.92, 6,748.20 and 3,900.99 is: 5,384.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.92 : 6,748.20 = 3,900.99 : x
  2. Step 2: Convert to fraction form
    4,888.92/6,748.20 = 3,900.99/x
  3. Step 3: Cross multiply
    4,888.92x = 6,748.20 × 3,900.99
  4. Step 4: Simplify right side
    4,888.92x = 26,324,660.72
  5. Step 5: Solve for x
    x = 26,324,660.72/4,888.92
  6. Step 6: Final answer
    x = 5,384.56

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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.