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Finding the Fourth Proportional to 12,241.59, 16,783.38 and 12,020.16

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Solution

The fourth proportional to 12,241.59, 16,783.38 and 12,020.16 is: 16,479.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,241.59 : 16,783.38 = 12,020.16 : x
  2. Step 2: Convert to fraction form
    12,241.59/16,783.38 = 12,020.16/x
  3. Step 3: Cross multiply
    12,241.59x = 16,783.38 × 12,020.16
  4. Step 4: Simplify right side
    12,241.59x = 201,738,829.66
  5. Step 5: Solve for x
    x = 201,738,829.66/12,241.59
  6. Step 6: Final answer
    x = 16,479.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.