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Finding the Fourth Proportional to 63,671.84, 87,866.81 and 34,993.28

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Solution

The fourth proportional to 63,671.84, 87,866.81 and 34,993.28 is: 48,290.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,671.84 : 87,866.81 = 34,993.28 : x
  2. Step 2: Convert to fraction form
    63,671.84/87,866.81 = 34,993.28/x
  3. Step 3: Cross multiply
    63,671.84x = 87,866.81 × 34,993.28
  4. Step 4: Simplify right side
    63,671.84x = 3,074,747,270.74
  5. Step 5: Solve for x
    x = 3,074,747,270.74/63,671.84
  6. Step 6: Final answer
    x = 48,290.54

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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.