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Finding the Fourth Proportional to 12,074.63, 16,662.02 and 6,768.72

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Solution

The fourth proportional to 12,074.63, 16,662.02 and 6,768.72 is: 9,340.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,074.63 : 16,662.02 = 6,768.72 : x
  2. Step 2: Convert to fraction form
    12,074.63/16,662.02 = 6,768.72/x
  3. Step 3: Cross multiply
    12,074.63x = 16,662.02 × 6,768.72
  4. Step 4: Simplify right side
    12,074.63x = 112,780,514.17
  5. Step 5: Solve for x
    x = 112,780,514.17/12,074.63
  6. Step 6: Final answer
    x = 9,340.29

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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.