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Finding the Fourth Proportional to 2,092.98, 3,140.24 and 860.06

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Solution

The fourth proportional to 2,092.98, 3,140.24 and 860.06 is: 1,290.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.98 : 3,140.24 = 860.06 : x
  2. Step 2: Convert to fraction form
    2,092.98/3,140.24 = 860.06/x
  3. Step 3: Cross multiply
    2,092.98x = 3,140.24 × 860.06
  4. Step 4: Simplify right side
    2,092.98x = 2,700,794.81
  5. Step 5: Solve for x
    x = 2,700,794.81/2,092.98
  6. Step 6: Final answer
    x = 1,290.41

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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.