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Finding the Fourth Proportional to 6,271.75, 8,651.94 and 5,276.65

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Solution

The fourth proportional to 6,271.75, 8,651.94 and 5,276.65 is: 7,279.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,271.75 : 8,651.94 = 5,276.65 : x
  2. Step 2: Convert to fraction form
    6,271.75/8,651.94 = 5,276.65/x
  3. Step 3: Cross multiply
    6,271.75x = 8,651.94 × 5,276.65
  4. Step 4: Simplify right side
    6,271.75x = 45,653,259.20
  5. Step 5: Solve for x
    x = 45,653,259.20/6,271.75
  6. Step 6: Final answer
    x = 7,279.19

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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.