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Finding the Fourth Proportional to 12,196.95, 18,259.79 and 11,029.65

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Solution

The fourth proportional to 12,196.95, 18,259.79 and 11,029.65 is: 16,512.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,196.95 : 18,259.79 = 11,029.65 : x
  2. Step 2: Convert to fraction form
    12,196.95/18,259.79 = 11,029.65/x
  3. Step 3: Cross multiply
    12,196.95x = 18,259.79 × 11,029.65
  4. Step 4: Simplify right side
    12,196.95x = 201,399,037.63
  5. Step 5: Solve for x
    x = 201,399,037.63/12,196.95
  6. Step 6: Final answer
    x = 16,512.25

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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.