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Finding the Fourth Proportional to 2,846.90, 4,265.55 and 1,382.90

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Solution

The fourth proportional to 2,846.90, 4,265.55 and 1,382.90 is: 2,072.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,846.90 : 4,265.55 = 1,382.90 : x
  2. Step 2: Convert to fraction form
    2,846.90/4,265.55 = 1,382.90/x
  3. Step 3: Cross multiply
    2,846.90x = 4,265.55 × 1,382.90
  4. Step 4: Simplify right side
    2,846.90x = 5,898,829.10
  5. Step 5: Solve for x
    x = 5,898,829.10/2,846.90
  6. Step 6: Final answer
    x = 2,072.02

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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.