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Finding the Fourth Proportional to 57,871.02, 86,809.50 and 16,321.26

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Solution

The fourth proportional to 57,871.02, 86,809.50 and 16,321.26 is: 24,482.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,871.02 : 86,809.50 = 16,321.26 : x
  2. Step 2: Convert to fraction form
    57,871.02/86,809.50 = 16,321.26/x
  3. Step 3: Cross multiply
    57,871.02x = 86,809.50 × 16,321.26
  4. Step 4: Simplify right side
    57,871.02x = 1,416,840,419.97
  5. Step 5: Solve for x
    x = 1,416,840,419.97/57,871.02
  6. Step 6: Final answer
    x = 24,482.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.