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Finding the Fourth Proportional to 12,080.80, 18,106.80 and 5,060.80

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Solution

The fourth proportional to 12,080.80, 18,106.80 and 5,060.80 is: 7,585.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,080.80 : 18,106.80 = 5,060.80 : x
  2. Step 2: Convert to fraction form
    12,080.80/18,106.80 = 5,060.80/x
  3. Step 3: Cross multiply
    12,080.80x = 18,106.80 × 5,060.80
  4. Step 4: Simplify right side
    12,080.80x = 91,634,893.44
  5. Step 5: Solve for x
    x = 91,634,893.44/12,080.80
  6. Step 6: Final answer
    x = 7,585.17

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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.