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Finding the Fourth Proportional to 8,809.75, 13,210.53 and 3,262.87

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Solution

The fourth proportional to 8,809.75, 13,210.53 and 3,262.87 is: 4,892.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.75 : 13,210.53 = 3,262.87 : x
  2. Step 2: Convert to fraction form
    8,809.75/13,210.53 = 3,262.87/x
  3. Step 3: Cross multiply
    8,809.75x = 13,210.53 × 3,262.87
  4. Step 4: Simplify right side
    8,809.75x = 43,104,242.02
  5. Step 5: Solve for x
    x = 43,104,242.02/8,809.75
  6. Step 6: Final answer
    x = 4,892.79

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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.