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Finding the Fourth Proportional to 12,206.73, 16,845.28 and 6,617.73

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Solution

The fourth proportional to 12,206.73, 16,845.28 and 6,617.73 is: 9,132.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.73 : 16,845.28 = 6,617.73 : x
  2. Step 2: Convert to fraction form
    12,206.73/16,845.28 = 6,617.73/x
  3. Step 3: Cross multiply
    12,206.73x = 16,845.28 × 6,617.73
  4. Step 4: Simplify right side
    12,206.73x = 111,477,514.81
  5. Step 5: Solve for x
    x = 111,477,514.81/12,206.73
  6. Step 6: Final answer
    x = 9,132.46

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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.