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Finding the Fourth Proportional to 6,368.60, 8,786.25 and 4,694

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Solution

The fourth proportional to 6,368.60, 8,786.25 and 4,694 is: 6,475.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.60 : 8,786.25 = 4,694 : x
  2. Step 2: Convert to fraction form
    6,368.60/8,786.25 = 4,694/x
  3. Step 3: Cross multiply
    6,368.60x = 8,786.25 × 4,694
  4. Step 4: Simplify right side
    6,368.60x = 41,242,657.50
  5. Step 5: Solve for x
    x = 41,242,657.50/6,368.60
  6. Step 6: Final answer
    x = 6,475.94

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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.