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Finding the Fourth Proportional to 63,409.84, 87,485.76 and 36,548.68

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Solution

The fourth proportional to 63,409.84, 87,485.76 and 36,548.68 is: 50,425.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,409.84 : 87,485.76 = 36,548.68 : x
  2. Step 2: Convert to fraction form
    63,409.84/87,485.76 = 36,548.68/x
  3. Step 3: Cross multiply
    63,409.84x = 87,485.76 × 36,548.68
  4. Step 4: Simplify right side
    63,409.84x = 3,197,489,046.80
  5. Step 5: Solve for x
    x = 3,197,489,046.80/63,409.84
  6. Step 6: Final answer
    x = 50,425.75

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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.