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Finding the Fourth Proportional to 13,873.94, 20,808.62 and 5,974.32

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Solution

The fourth proportional to 13,873.94, 20,808.62 and 5,974.32 is: 8,960.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873.94 : 20,808.62 = 5,974.32 : x
  2. Step 2: Convert to fraction form
    13,873.94/20,808.62 = 5,974.32/x
  3. Step 3: Cross multiply
    13,873.94x = 20,808.62 × 5,974.32
  4. Step 4: Simplify right side
    13,873.94x = 124,317,354.64
  5. Step 5: Solve for x
    x = 124,317,354.64/13,873.94
  6. Step 6: Final answer
    x = 8,960.49

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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.