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Finding the Fourth Proportional to 7,081.66, 10,623.84 and 3,384.18

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Solution

The fourth proportional to 7,081.66, 10,623.84 and 3,384.18 is: 5,076.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.66 : 10,623.84 = 3,384.18 : x
  2. Step 2: Convert to fraction form
    7,081.66/10,623.84 = 3,384.18/x
  3. Step 3: Cross multiply
    7,081.66x = 10,623.84 × 3,384.18
  4. Step 4: Simplify right side
    7,081.66x = 35,952,986.85
  5. Step 5: Solve for x
    x = 35,952,986.85/7,081.66
  6. Step 6: Final answer
    x = 5,076.92

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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.