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Finding the Fourth Proportional to 57,771.64, 86,672.04 and 16,218.64

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Solution

The fourth proportional to 57,771.64, 86,672.04 and 16,218.64 is: 24,332.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,771.64 : 86,672.04 = 16,218.64 : x
  2. Step 2: Convert to fraction form
    57,771.64/86,672.04 = 16,218.64/x
  3. Step 3: Cross multiply
    57,771.64x = 86,672.04 × 16,218.64
  4. Step 4: Simplify right side
    57,771.64x = 1,405,702,614.83
  5. Step 5: Solve for x
    x = 1,405,702,614.83/57,771.64
  6. Step 6: Final answer
    x = 24,332.05

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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.