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Finding the Fourth Proportional to 14,362.56, 19,813.68 and 8,394.48

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Solution

The fourth proportional to 14,362.56, 19,813.68 and 8,394.48 is: 11,580.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,362.56 : 19,813.68 = 8,394.48 : x
  2. Step 2: Convert to fraction form
    14,362.56/19,813.68 = 8,394.48/x
  3. Step 3: Cross multiply
    14,362.56x = 19,813.68 × 8,394.48
  4. Step 4: Simplify right side
    14,362.56x = 166,325,540.49
  5. Step 5: Solve for x
    x = 166,325,540.49/14,362.56
  6. Step 6: Final answer
    x = 11,580.49

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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.