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Finding the Fourth Proportional to 2,725.63, 4,089.05 and 994.25

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Solution

The fourth proportional to 2,725.63, 4,089.05 and 994.25 is: 1,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.63 : 4,089.05 = 994.25 : x
  2. Step 2: Convert to fraction form
    2,725.63/4,089.05 = 994.25/x
  3. Step 3: Cross multiply
    2,725.63x = 4,089.05 × 994.25
  4. Step 4: Simplify right side
    2,725.63x = 4,065,537.96
  5. Step 5: Solve for x
    x = 4,065,537.96/2,725.63
  6. Step 6: Final answer
    x = 1,491.60

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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.