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Finding the Fourth Proportional to 6,992.96, 9,649.92 and 3,848.96

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Solution

The fourth proportional to 6,992.96, 9,649.92 and 3,848.96 is: 5,311.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992.96 : 9,649.92 = 3,848.96 : x
  2. Step 2: Convert to fraction form
    6,992.96/9,649.92 = 3,848.96/x
  3. Step 3: Cross multiply
    6,992.96x = 9,649.92 × 3,848.96
  4. Step 4: Simplify right side
    6,992.96x = 37,142,156.08
  5. Step 5: Solve for x
    x = 37,142,156.08/6,992.96
  6. Step 6: Final answer
    x = 5,311.36

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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.