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Finding the Fourth Proportional to 43,908.98, 65,863.65 and 10,628.99

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Solution

The fourth proportional to 43,908.98, 65,863.65 and 10,628.99 is: 15,943.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,908.98 : 65,863.65 = 10,628.99 : x
  2. Step 2: Convert to fraction form
    43,908.98/65,863.65 = 10,628.99/x
  3. Step 3: Cross multiply
    43,908.98x = 65,863.65 × 10,628.99
  4. Step 4: Simplify right side
    43,908.98x = 700,064,345.44
  5. Step 5: Solve for x
    x = 700,064,345.44/43,908.98
  6. Step 6: Final answer
    x = 15,943.53

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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.