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Finding the Fourth Proportional to 17,556.40, 26,334.60 and 8,808.40

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Solution

The fourth proportional to 17,556.40, 26,334.60 and 8,808.40 is: 13,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,556.40 : 26,334.60 = 8,808.40 : x
  2. Step 2: Convert to fraction form
    17,556.40/26,334.60 = 8,808.40/x
  3. Step 3: Cross multiply
    17,556.40x = 26,334.60 × 8,808.40
  4. Step 4: Simplify right side
    17,556.40x = 231,965,690.64
  5. Step 5: Solve for x
    x = 231,965,690.64/17,556.40
  6. Step 6: Final answer
    x = 13,212.60

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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.