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Finding the Fourth Proportional to 16,992.30, 25,503.04 and 8,118.58

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Solution

The fourth proportional to 16,992.30, 25,503.04 and 8,118.58 is: 12,184.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,992.30 : 25,503.04 = 8,118.58 : x
  2. Step 2: Convert to fraction form
    16,992.30/25,503.04 = 8,118.58/x
  3. Step 3: Cross multiply
    16,992.30x = 25,503.04 × 8,118.58
  4. Step 4: Simplify right side
    16,992.30x = 207,048,470.48
  5. Step 5: Solve for x
    x = 207,048,470.48/16,992.30
  6. Step 6: Final answer
    x = 12,184.84

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1.5x scale

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.