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Finding the Fourth Proportional to 11,608.19, 17,419.19 and 4,213.22

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Solution

The fourth proportional to 11,608.19, 17,419.19 and 4,213.22 is: 6,322.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,608.19 : 17,419.19 = 4,213.22 : x
  2. Step 2: Convert to fraction form
    11,608.19/17,419.19 = 4,213.22/x
  3. Step 3: Cross multiply
    11,608.19x = 17,419.19 × 4,213.22
  4. Step 4: Simplify right side
    11,608.19x = 73,390,933.77
  5. Step 5: Solve for x
    x = 73,390,933.77/11,608.19
  6. Step 6: Final answer
    x = 6,322.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.