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Finding the Fourth Proportional to 13,794.13, 19,035.90 and 8,205.13

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Solution

The fourth proportional to 13,794.13, 19,035.90 and 8,205.13 is: 11,323.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,794.13 : 19,035.90 = 8,205.13 : x
  2. Step 2: Convert to fraction form
    13,794.13/19,035.90 = 8,205.13/x
  3. Step 3: Cross multiply
    13,794.13x = 19,035.90 × 8,205.13
  4. Step 4: Simplify right side
    13,794.13x = 156,191,897.96
  5. Step 5: Solve for x
    x = 156,191,897.96/13,794.13
  6. Step 6: Final answer
    x = 11,323.07

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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.