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Finding the Fourth Proportional to 56,174.32, 84,255.90 and 14,621.32

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Solution

The fourth proportional to 56,174.32, 84,255.90 and 14,621.32 is: 21,930.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,174.32 : 84,255.90 = 14,621.32 : x
  2. Step 2: Convert to fraction form
    56,174.32/84,255.90 = 14,621.32/x
  3. Step 3: Cross multiply
    56,174.32x = 84,255.90 × 14,621.32
  4. Step 4: Simplify right side
    56,174.32x = 1,231,932,475.79
  5. Step 5: Solve for x
    x = 1,231,932,475.79/56,174.32
  6. Step 6: Final answer
    x = 21,930.53

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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.