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Finding the Fourth Proportional to 12,606.84, 18,913.11 and 4,173.33

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Solution

The fourth proportional to 12,606.84, 18,913.11 and 4,173.33 is: 6,260.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606.84 : 18,913.11 = 4,173.33 : x
  2. Step 2: Convert to fraction form
    12,606.84/18,913.11 = 4,173.33/x
  3. Step 3: Cross multiply
    12,606.84x = 18,913.11 × 4,173.33
  4. Step 4: Simplify right side
    12,606.84x = 78,930,649.36
  5. Step 5: Solve for x
    x = 78,930,649.36/12,606.84
  6. Step 6: Final answer
    x = 6,260.94

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1.5x scale

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.