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Finding the Fourth Proportional to 8,074.01, 12,111 and 2,150.90

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Solution

The fourth proportional to 8,074.01, 12,111 and 2,150.90 is: 3,226.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.01 : 12,111 = 2,150.90 : x
  2. Step 2: Convert to fraction form
    8,074.01/12,111 = 2,150.90/x
  3. Step 3: Cross multiply
    8,074.01x = 12,111 × 2,150.90
  4. Step 4: Simplify right side
    8,074.01x = 26,049,549.90
  5. Step 5: Solve for x
    x = 26,049,549.90/8,074.01
  6. Step 6: Final answer
    x = 3,226.35

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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.