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Finding the Fourth Proportional to 43,969.76, 65,954.06 and 10,689.73

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Solution

The fourth proportional to 43,969.76, 65,954.06 and 10,689.73 is: 16,034.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,969.76 : 65,954.06 = 10,689.73 : x
  2. Step 2: Convert to fraction form
    43,969.76/65,954.06 = 10,689.73/x
  3. Step 3: Cross multiply
    43,969.76x = 65,954.06 × 10,689.73
  4. Step 4: Simplify right side
    43,969.76x = 705,031,093.80
  5. Step 5: Solve for x
    x = 705,031,093.80/43,969.76
  6. Step 6: Final answer
    x = 16,034.45

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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.