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Finding the Fourth Proportional to 6,698.80, 10,051.80 and 2,803.60

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Solution

The fourth proportional to 6,698.80, 10,051.80 and 2,803.60 is: 4,206.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,698.80 : 10,051.80 = 2,803.60 : x
  2. Step 2: Convert to fraction form
    6,698.80/10,051.80 = 2,803.60/x
  3. Step 3: Cross multiply
    6,698.80x = 10,051.80 × 2,803.60
  4. Step 4: Simplify right side
    6,698.80x = 28,181,226.48
  5. Step 5: Solve for x
    x = 28,181,226.48/6,698.80
  6. Step 6: Final answer
    x = 4,206.91

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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.