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Finding the Fourth Proportional to 8,707.86, 13,069.65 and 5,889.88

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Solution

The fourth proportional to 8,707.86, 13,069.65 and 5,889.88 is: 8,840.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.86 : 13,069.65 = 5,889.88 : x
  2. Step 2: Convert to fraction form
    8,707.86/13,069.65 = 5,889.88/x
  3. Step 3: Cross multiply
    8,707.86x = 13,069.65 × 5,889.88
  4. Step 4: Simplify right side
    8,707.86x = 76,978,708.57
  5. Step 5: Solve for x
    x = 76,978,708.57/8,707.86
  6. Step 6: Final answer
    x = 8,840.14

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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.