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Finding the Fourth Proportional to 17,773.68, 26,643.24 and 7,388.40

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Solution

The fourth proportional to 17,773.68, 26,643.24 and 7,388.40 is: 11,075.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,773.68 : 26,643.24 = 7,388.40 : x
  2. Step 2: Convert to fraction form
    17,773.68/26,643.24 = 7,388.40/x
  3. Step 3: Cross multiply
    17,773.68x = 26,643.24 × 7,388.40
  4. Step 4: Simplify right side
    17,773.68x = 196,850,914.42
  5. Step 5: Solve for x
    x = 196,850,914.42/17,773.68
  6. Step 6: Final answer
    x = 11,075.42

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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.