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Finding the Fourth Proportional to 12,060.39, 16,642.06 and 6,682.67

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Solution

The fourth proportional to 12,060.39, 16,642.06 and 6,682.67 is: 9,221.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,060.39 : 16,642.06 = 6,682.67 : x
  2. Step 2: Convert to fraction form
    12,060.39/16,642.06 = 6,682.67/x
  3. Step 3: Cross multiply
    12,060.39x = 16,642.06 × 6,682.67
  4. Step 4: Simplify right side
    12,060.39x = 111,213,395.10
  5. Step 5: Solve for x
    x = 111,213,395.10/12,060.39
  6. Step 6: Final answer
    x = 9,221.38

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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.