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Finding the Fourth Proportional to 6,955.03, 10,406.39 and 4,879.09

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Solution

The fourth proportional to 6,955.03, 10,406.39 and 4,879.09 is: 7,300.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,955.03 : 10,406.39 = 4,879.09 : x
  2. Step 2: Convert to fraction form
    6,955.03/10,406.39 = 4,879.09/x
  3. Step 3: Cross multiply
    6,955.03x = 10,406.39 × 4,879.09
  4. Step 4: Simplify right side
    6,955.03x = 50,773,670.91
  5. Step 5: Solve for x
    x = 50,773,670.91/6,955.03
  6. Step 6: Final answer
    x = 7,300.28

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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.