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Finding the Fourth Proportional to 9,993.90, 13,788.48 and 5,801.34

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Solution

The fourth proportional to 9,993.90, 13,788.48 and 5,801.34 is: 8,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.90 : 13,788.48 = 5,801.34 : x
  2. Step 2: Convert to fraction form
    9,993.90/13,788.48 = 5,801.34/x
  3. Step 3: Cross multiply
    9,993.90x = 13,788.48 × 5,801.34
  4. Step 4: Simplify right side
    9,993.90x = 79,991,660.56
  5. Step 5: Solve for x
    x = 79,991,660.56/9,993.90
  6. Step 6: Final answer
    x = 8,004.05

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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.