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Finding the Fourth Proportional to 63,486.63, 87,617.84 and 35,197.79

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Solution

The fourth proportional to 63,486.63, 87,617.84 and 35,197.79 is: 48,576.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,486.63 : 87,617.84 = 35,197.79 : x
  2. Step 2: Convert to fraction form
    63,486.63/87,617.84 = 35,197.79/x
  3. Step 3: Cross multiply
    63,486.63x = 87,617.84 × 35,197.79
  4. Step 4: Simplify right side
    63,486.63x = 3,083,953,718.50
  5. Step 5: Solve for x
    x = 3,083,953,718.50/63,486.63
  6. Step 6: Final answer
    x = 48,576.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.