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Finding the Fourth Proportional to 12,463.10, 18,693.08 and 5,447.94

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Solution

The fourth proportional to 12,463.10, 18,693.08 and 5,447.94 is: 8,171.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463.10 : 18,693.08 = 5,447.94 : x
  2. Step 2: Convert to fraction form
    12,463.10/18,693.08 = 5,447.94/x
  3. Step 3: Cross multiply
    12,463.10x = 18,693.08 × 5,447.94
  4. Step 4: Simplify right side
    12,463.10x = 101,838,806.49
  5. Step 5: Solve for x
    x = 101,838,806.49/12,463.10
  6. Step 6: Final answer
    x = 8,171.23

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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.