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Finding the Fourth Proportional to 8,556.92, 11,808.06 and 5,019.86

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Solution

The fourth proportional to 8,556.92, 11,808.06 and 5,019.86 is: 6,927.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.92 : 11,808.06 = 5,019.86 : x
  2. Step 2: Convert to fraction form
    8,556.92/11,808.06 = 5,019.86/x
  3. Step 3: Cross multiply
    8,556.92x = 11,808.06 × 5,019.86
  4. Step 4: Simplify right side
    8,556.92x = 59,274,808.07
  5. Step 5: Solve for x
    x = 59,274,808.07/8,556.92
  6. Step 6: Final answer
    x = 6,927.12

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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.