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Finding the Fourth Proportional to 2,093.16, 3,140.66 and 860.83

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Solution

The fourth proportional to 2,093.16, 3,140.66 and 860.83 is: 1,291.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,093.16 : 3,140.66 = 860.83 : x
  2. Step 2: Convert to fraction form
    2,093.16/3,140.66 = 860.83/x
  3. Step 3: Cross multiply
    2,093.16x = 3,140.66 × 860.83
  4. Step 4: Simplify right side
    2,093.16x = 2,703,570.04
  5. Step 5: Solve for x
    x = 2,703,570.04/2,093.16
  6. Step 6: Final answer
    x = 1,291.62

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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.