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Finding the Fourth Proportional to 63,486.92, 87,606.06 and 35,190.20

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Solution

The fourth proportional to 63,486.92, 87,606.06 and 35,190.20 is: 48,559.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,486.92 : 87,606.06 = 35,190.20 : x
  2. Step 2: Convert to fraction form
    63,486.92/87,606.06 = 35,190.20/x
  3. Step 3: Cross multiply
    63,486.92x = 87,606.06 × 35,190.20
  4. Step 4: Simplify right side
    63,486.92x = 3,082,874,772.61
  5. Step 5: Solve for x
    x = 3,082,874,772.61/63,486.92
  6. Step 6: Final answer
    x = 48,559.21

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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.