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Finding the Fourth Proportional to 13,811.11, 19,052.01 and 10,447.99

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Solution

The fourth proportional to 13,811.11, 19,052.01 and 10,447.99 is: 14,412.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.11 : 19,052.01 = 10,447.99 : x
  2. Step 2: Convert to fraction form
    13,811.11/19,052.01 = 10,447.99/x
  3. Step 3: Cross multiply
    13,811.11x = 19,052.01 × 10,447.99
  4. Step 4: Simplify right side
    13,811.11x = 199,055,162.33
  5. Step 5: Solve for x
    x = 199,055,162.33/13,811.11
  6. Step 6: Final answer
    x = 14,412.69

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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.