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Finding the Fourth Proportional to 7,798.62, 11,698.92 and 2,867.34

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Solution

The fourth proportional to 7,798.62, 11,698.92 and 2,867.34 is: 4,301.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.62 : 11,698.92 = 2,867.34 : x
  2. Step 2: Convert to fraction form
    7,798.62/11,698.92 = 2,867.34/x
  3. Step 3: Cross multiply
    7,798.62x = 11,698.92 × 2,867.34
  4. Step 4: Simplify right side
    7,798.62x = 33,544,781.27
  5. Step 5: Solve for x
    x = 33,544,781.27/7,798.62
  6. Step 6: Final answer
    x = 4,301.37

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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.