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Finding the Fourth Proportional to 26,922.42, 40,390.02 and 8,454.42

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Solution

The fourth proportional to 26,922.42, 40,390.02 and 8,454.42 is: 12,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,922.42 : 40,390.02 = 8,454.42 : x
  2. Step 2: Convert to fraction form
    26,922.42/40,390.02 = 8,454.42/x
  3. Step 3: Cross multiply
    26,922.42x = 40,390.02 × 8,454.42
  4. Step 4: Simplify right side
    26,922.42x = 341,474,192.89
  5. Step 5: Solve for x
    x = 341,474,192.89/26,922.42
  6. Step 6: Final answer
    x = 12,683.64

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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.