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Finding the Fourth Proportional to 52,361.28, 72,257.77 and 28,487.41

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Solution

The fourth proportional to 52,361.28, 72,257.77 and 28,487.41 is: 39,312.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,361.28 : 72,257.77 = 28,487.41 : x
  2. Step 2: Convert to fraction form
    52,361.28/72,257.77 = 28,487.41/x
  3. Step 3: Cross multiply
    52,361.28x = 72,257.77 × 28,487.41
  4. Step 4: Simplify right side
    52,361.28x = 2,058,436,467.81
  5. Step 5: Solve for x
    x = 2,058,436,467.81/52,361.28
  6. Step 6: Final answer
    x = 39,312.19

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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.