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Finding the Fourth Proportional to 43,959.63, 65,939.34 and 10,679.70

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Solution

The fourth proportional to 43,959.63, 65,939.34 and 10,679.70 is: 16,019.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,959.63 : 65,939.34 = 10,679.70 : x
  2. Step 2: Convert to fraction form
    43,959.63/65,939.34 = 10,679.70/x
  3. Step 3: Cross multiply
    43,959.63x = 65,939.34 × 10,679.70
  4. Step 4: Simplify right side
    43,959.63x = 704,212,369.40
  5. Step 5: Solve for x
    x = 704,212,369.40/43,959.63
  6. Step 6: Final answer
    x = 16,019.52

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1.5x scale

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.