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Finding the Fourth Proportional to 7,698.42, 11,543.52 and 3,996.92

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Solution

The fourth proportional to 7,698.42, 11,543.52 and 3,996.92 is: 5,993.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,698.42 : 11,543.52 = 3,996.92 : x
  2. Step 2: Convert to fraction form
    7,698.42/11,543.52 = 3,996.92/x
  3. Step 3: Cross multiply
    7,698.42x = 11,543.52 × 3,996.92
  4. Step 4: Simplify right side
    7,698.42x = 46,138,525.96
  5. Step 5: Solve for x
    x = 46,138,525.96/7,698.42
  6. Step 6: Final answer
    x = 5,993.25

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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.