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Finding the Fourth Proportional to 13,796.90, 19,041.11 and 8,133.45

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Solution

The fourth proportional to 13,796.90, 19,041.11 and 8,133.45 is: 11,224.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,796.90 : 19,041.11 = 8,133.45 : x
  2. Step 2: Convert to fraction form
    13,796.90/19,041.11 = 8,133.45/x
  3. Step 3: Cross multiply
    13,796.90x = 19,041.11 × 8,133.45
  4. Step 4: Simplify right side
    13,796.90x = 154,869,834.56
  5. Step 5: Solve for x
    x = 154,869,834.56/13,796.90
  6. Step 6: Final answer
    x = 11,224.97

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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.