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Finding the Fourth Proportional to 6,123.40, 8,450.24 and 3,471.32

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Solution

The fourth proportional to 6,123.40, 8,450.24 and 3,471.32 is: 4,790.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,123.40 : 8,450.24 = 3,471.32 : x
  2. Step 2: Convert to fraction form
    6,123.40/8,450.24 = 3,471.32/x
  3. Step 3: Cross multiply
    6,123.40x = 8,450.24 × 3,471.32
  4. Step 4: Simplify right side
    6,123.40x = 29,333,487.12
  5. Step 5: Solve for x
    x = 29,333,487.12/6,123.40
  6. Step 6: Final answer
    x = 4,790.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.