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Finding the Fourth Proportional to 6,317.87, 8,713.80 and 4,830.71

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Solution

The fourth proportional to 6,317.87, 8,713.80 and 4,830.71 is: 6,662.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,317.87 : 8,713.80 = 4,830.71 : x
  2. Step 2: Convert to fraction form
    6,317.87/8,713.80 = 4,830.71/x
  3. Step 3: Cross multiply
    6,317.87x = 8,713.80 × 4,830.71
  4. Step 4: Simplify right side
    6,317.87x = 42,093,797.23
  5. Step 5: Solve for x
    x = 42,093,797.23/6,317.87
  6. Step 6: Final answer
    x = 6,662.66

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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.