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Finding the Fourth Proportional to 65,963.81, 98,945.79 and 16,043.56

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Solution

The fourth proportional to 65,963.81, 98,945.79 and 16,043.56 is: 24,065.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,963.81 : 98,945.79 = 16,043.56 : x
  2. Step 2: Convert to fraction form
    65,963.81/98,945.79 = 16,043.56/x
  3. Step 3: Cross multiply
    65,963.81x = 98,945.79 × 16,043.56
  4. Step 4: Simplify right side
    65,963.81x = 1,587,442,339.63
  5. Step 5: Solve for x
    x = 1,587,442,339.63/65,963.81
  6. Step 6: Final answer
    x = 24,065.35

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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.