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Finding the Fourth Proportional to 43,959.94, 65,938.98 and 10,680.16

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Solution

The fourth proportional to 43,959.94, 65,938.98 and 10,680.16 is: 16,020.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,959.94 : 65,938.98 = 10,680.16 : x
  2. Step 2: Convert to fraction form
    43,959.94/65,938.98 = 10,680.16/x
  3. Step 3: Cross multiply
    43,959.94x = 65,938.98 × 10,680.16
  4. Step 4: Simplify right side
    43,959.94x = 704,238,856.64
  5. Step 5: Solve for x
    x = 704,238,856.64/43,959.94
  6. Step 6: Final answer
    x = 16,020.01

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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.