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Finding the Fourth Proportional to 12,052.80, 15,940.80 and 12,052.80

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Solution

The fourth proportional to 12,052.80, 15,940.80 and 12,052.80 is: 15,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,052.80 : 15,940.80 = 12,052.80 : x
  2. Step 2: Convert to fraction form
    12,052.80/15,940.80 = 12,052.80/x
  3. Step 3: Cross multiply
    12,052.80x = 15,940.80 × 12,052.80
  4. Step 4: Simplify right side
    12,052.80x = 192,131,274.24
  5. Step 5: Solve for x
    x = 192,131,274.24/12,052.80
  6. Step 6: Final answer
    x = 15,940.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.