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Finding the Fourth Proportional to 25,847.52, 38,771.52 and 16,620

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Solution

The fourth proportional to 25,847.52, 38,771.52 and 16,620 is: 24,930.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,847.52 : 38,771.52 = 16,620 : x
  2. Step 2: Convert to fraction form
    25,847.52/38,771.52 = 16,620/x
  3. Step 3: Cross multiply
    25,847.52x = 38,771.52 × 16,620
  4. Step 4: Simplify right side
    25,847.52x = 644,382,662.40
  5. Step 5: Solve for x
    x = 644,382,662.40/25,847.52
  6. Step 6: Final answer
    x = 24,930.15

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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.