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Finding the Fourth Proportional to 1,883.72, 2,813.06 and 1,863.38

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Solution

The fourth proportional to 1,883.72, 2,813.06 and 1,863.38 is: 2,782.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,883.72 : 2,813.06 = 1,863.38 : x
  2. Step 2: Convert to fraction form
    1,883.72/2,813.06 = 1,863.38/x
  3. Step 3: Cross multiply
    1,883.72x = 2,813.06 × 1,863.38
  4. Step 4: Simplify right side
    1,883.72x = 5,241,799.74
  5. Step 5: Solve for x
    x = 5,241,799.74/1,883.72
  6. Step 6: Final answer
    x = 2,782.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.