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Finding the Fourth Proportional to 8,835.86, 13,236.08 and 5,323.90

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Solution

The fourth proportional to 8,835.86, 13,236.08 and 5,323.90 is: 7,975.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835.86 : 13,236.08 = 5,323.90 : x
  2. Step 2: Convert to fraction form
    8,835.86/13,236.08 = 5,323.90/x
  3. Step 3: Cross multiply
    8,835.86x = 13,236.08 × 5,323.90
  4. Step 4: Simplify right side
    8,835.86x = 70,467,566.31
  5. Step 5: Solve for x
    x = 70,467,566.31/8,835.86
  6. Step 6: Final answer
    x = 7,975.18

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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.