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Finding the Fourth Proportional to 6,698.47, 10,047.79 and 3,188.81

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Solution

The fourth proportional to 6,698.47, 10,047.79 and 3,188.81 is: 4,783.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,698.47 : 10,047.79 = 3,188.81 : x
  2. Step 2: Convert to fraction form
    6,698.47/10,047.79 = 3,188.81/x
  3. Step 3: Cross multiply
    6,698.47x = 10,047.79 × 3,188.81
  4. Step 4: Simplify right side
    6,698.47x = 32,040,493.23
  5. Step 5: Solve for x
    x = 32,040,493.23/6,698.47
  6. Step 6: Final answer
    x = 4,783.26

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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.