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Finding the Fourth Proportional to 9,998.86, 13,799.00 and 6,021.25

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Solution

The fourth proportional to 9,998.86, 13,799.00 and 6,021.25 is: 8,309.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998.86 : 13,799.00 = 6,021.25 : x
  2. Step 2: Convert to fraction form
    9,998.86/13,799.00 = 6,021.25/x
  3. Step 3: Cross multiply
    9,998.86x = 13,799.00 × 6,021.25
  4. Step 4: Simplify right side
    9,998.86x = 83,087,198.64
  5. Step 5: Solve for x
    x = 83,087,198.64/9,998.86
  6. Step 6: Final answer
    x = 8,309.67

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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.