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Finding the Fourth Proportional to 5,651.86, 8,479.23 and 1,756.30

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Solution

The fourth proportional to 5,651.86, 8,479.23 and 1,756.30 is: 2,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,651.86 : 8,479.23 = 1,756.30 : x
  2. Step 2: Convert to fraction form
    5,651.86/8,479.23 = 1,756.30/x
  3. Step 3: Cross multiply
    5,651.86x = 8,479.23 × 1,756.30
  4. Step 4: Simplify right side
    5,651.86x = 14,892,071.65
  5. Step 5: Solve for x
    x = 14,892,071.65/5,651.86
  6. Step 6: Final answer
    x = 2,634.90

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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.