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Finding the Fourth Proportional to 30,216.54, 41,698.89 and 16,788.63

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Solution

The fourth proportional to 30,216.54, 41,698.89 and 16,788.63 is: 23,168.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,216.54 : 41,698.89 = 16,788.63 : x
  2. Step 2: Convert to fraction form
    30,216.54/41,698.89 = 16,788.63/x
  3. Step 3: Cross multiply
    30,216.54x = 41,698.89 × 16,788.63
  4. Step 4: Simplify right side
    30,216.54x = 700,067,235.62
  5. Step 5: Solve for x
    x = 700,067,235.62/30,216.54
  6. Step 6: Final answer
    x = 23,168.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.