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Finding the Fourth Proportional to 4,617.86, 6,926.79 and 2,154.41

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Solution

The fourth proportional to 4,617.86, 6,926.79 and 2,154.41 is: 3,231.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,617.86 : 6,926.79 = 2,154.41 : x
  2. Step 2: Convert to fraction form
    4,617.86/6,926.79 = 2,154.41/x
  3. Step 3: Cross multiply
    4,617.86x = 6,926.79 × 2,154.41
  4. Step 4: Simplify right side
    4,617.86x = 14,923,111.01
  5. Step 5: Solve for x
    x = 14,923,111.01/4,617.86
  6. Step 6: Final answer
    x = 3,231.61

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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.