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Finding the Fourth Proportional to 8,744.11, 12,065.49 and 4,914.99

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Solution

The fourth proportional to 8,744.11, 12,065.49 and 4,914.99 is: 6,781.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,744.11 : 12,065.49 = 4,914.99 : x
  2. Step 2: Convert to fraction form
    8,744.11/12,065.49 = 4,914.99/x
  3. Step 3: Cross multiply
    8,744.11x = 12,065.49 × 4,914.99
  4. Step 4: Simplify right side
    8,744.11x = 59,301,762.70
  5. Step 5: Solve for x
    x = 59,301,762.70/8,744.11
  6. Step 6: Final answer
    x = 6,781.91

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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.