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Finding the Fourth Proportional to 8,361.32, 12,539.34 and 3,023.80

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Solution

The fourth proportional to 8,361.32, 12,539.34 and 3,023.80 is: 4,534.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.32 : 12,539.34 = 3,023.80 : x
  2. Step 2: Convert to fraction form
    8,361.32/12,539.34 = 3,023.80/x
  3. Step 3: Cross multiply
    8,361.32x = 12,539.34 × 3,023.80
  4. Step 4: Simplify right side
    8,361.32x = 37,916,424.94
  5. Step 5: Solve for x
    x = 37,916,424.94/8,361.32
  6. Step 6: Final answer
    x = 4,534.74

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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.