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Finding the Fourth Proportional to 13,734.95, 18,953.06 and 7,993.44

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Solution

The fourth proportional to 13,734.95, 18,953.06 and 7,993.44 is: 11,030.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,734.95 : 18,953.06 = 7,993.44 : x
  2. Step 2: Convert to fraction form
    13,734.95/18,953.06 = 7,993.44/x
  3. Step 3: Cross multiply
    13,734.95x = 18,953.06 × 7,993.44
  4. Step 4: Simplify right side
    13,734.95x = 151,500,107.96
  5. Step 5: Solve for x
    x = 151,500,107.96/13,734.95
  6. Step 6: Final answer
    x = 11,030.27

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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.