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Finding the Fourth Proportional to 2,054.48, 3,080.76 and 755.04

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Solution

The fourth proportional to 2,054.48, 3,080.76 and 755.04 is: 1,132.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,054.48 : 3,080.76 = 755.04 : x
  2. Step 2: Convert to fraction form
    2,054.48/3,080.76 = 755.04/x
  3. Step 3: Cross multiply
    2,054.48x = 3,080.76 × 755.04
  4. Step 4: Simplify right side
    2,054.48x = 2,326,097.03
  5. Step 5: Solve for x
    x = 2,326,097.03/2,054.48
  6. Step 6: Final answer
    x = 1,132.21

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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.