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Finding the Fourth Proportional to 11,392.94, 17,089.92 and 3,494.88

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Solution

The fourth proportional to 11,392.94, 17,089.92 and 3,494.88 is: 5,242.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.94 : 17,089.92 = 3,494.88 : x
  2. Step 2: Convert to fraction form
    11,392.94/17,089.92 = 3,494.88/x
  3. Step 3: Cross multiply
    11,392.94x = 17,089.92 × 3,494.88
  4. Step 4: Simplify right side
    11,392.94x = 59,727,219.61
  5. Step 5: Solve for x
    x = 59,727,219.61/11,392.94
  6. Step 6: Final answer
    x = 5,242.48

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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.