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Finding the Fourth Proportional to 16,668.63, 25,002.98 and 6,677.90

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Solution

The fourth proportional to 16,668.63, 25,002.98 and 6,677.90 is: 10,016.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,668.63 : 25,002.98 = 6,677.90 : x
  2. Step 2: Convert to fraction form
    16,668.63/25,002.98 = 6,677.90/x
  3. Step 3: Cross multiply
    16,668.63x = 25,002.98 × 6,677.90
  4. Step 4: Simplify right side
    16,668.63x = 166,967,241.74
  5. Step 5: Solve for x
    x = 166,967,241.74/16,668.63
  6. Step 6: Final answer
    x = 10,016.85

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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.