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Finding the Fourth Proportional to 53,895.20, 80,842.80 and 16,455.20

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Solution

The fourth proportional to 53,895.20, 80,842.80 and 16,455.20 is: 24,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,895.20 : 80,842.80 = 16,455.20 : x
  2. Step 2: Convert to fraction form
    53,895.20/80,842.80 = 16,455.20/x
  3. Step 3: Cross multiply
    53,895.20x = 80,842.80 × 16,455.20
  4. Step 4: Simplify right side
    53,895.20x = 1,330,284,442.56
  5. Step 5: Solve for x
    x = 1,330,284,442.56/53,895.20
  6. Step 6: Final answer
    x = 24,682.80

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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.