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Finding the Fourth Proportional to 12,076.99, 16,666.03 and 6,771.79

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Solution

The fourth proportional to 12,076.99, 16,666.03 and 6,771.79 is: 9,344.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.99 : 16,666.03 = 6,771.79 : x
  2. Step 2: Convert to fraction form
    12,076.99/16,666.03 = 6,771.79/x
  3. Step 3: Cross multiply
    12,076.99x = 16,666.03 × 6,771.79
  4. Step 4: Simplify right side
    12,076.99x = 112,858,855.29
  5. Step 5: Solve for x
    x = 112,858,855.29/12,076.99
  6. Step 6: Final answer
    x = 9,344.95

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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.