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Finding the Fourth Proportional to 6,615.68, 9,914.86 and 5,049.84

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Solution

The fourth proportional to 6,615.68, 9,914.86 and 5,049.84 is: 7,568.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.68 : 9,914.86 = 5,049.84 : x
  2. Step 2: Convert to fraction form
    6,615.68/9,914.86 = 5,049.84/x
  3. Step 3: Cross multiply
    6,615.68x = 9,914.86 × 5,049.84
  4. Step 4: Simplify right side
    6,615.68x = 50,068,471.71
  5. Step 5: Solve for x
    x = 50,068,471.71/6,615.68
  6. Step 6: Final answer
    x = 7,568.16

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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.