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Finding the Fourth Proportional to 17,809.78, 24,566.79 and 11,760.08

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Solution

The fourth proportional to 17,809.78, 24,566.79 and 11,760.08 is: 16,221.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,809.78 : 24,566.79 = 11,760.08 : x
  2. Step 2: Convert to fraction form
    17,809.78/24,566.79 = 11,760.08/x
  3. Step 3: Cross multiply
    17,809.78x = 24,566.79 × 11,760.08
  4. Step 4: Simplify right side
    17,809.78x = 288,907,415.74
  5. Step 5: Solve for x
    x = 288,907,415.74/17,809.78
  6. Step 6: Final answer
    x = 16,221.84

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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.