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Finding the Fourth Proportional to 12,196.70, 18,259.41 and 11,029.39

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Solution

The fourth proportional to 12,196.70, 18,259.41 and 11,029.39 is: 16,511.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,196.70 : 18,259.41 = 11,029.39 : x
  2. Step 2: Convert to fraction form
    12,196.70/18,259.41 = 11,029.39/x
  3. Step 3: Cross multiply
    12,196.70x = 18,259.41 × 11,029.39
  4. Step 4: Simplify right side
    12,196.70x = 201,390,154.06
  5. Step 5: Solve for x
    x = 201,390,154.06/12,196.70
  6. Step 6: Final answer
    x = 16,511.86

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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.