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Finding the Fourth Proportional to 10,574.36, 15,850.08 and 6,879.22

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Solution

The fourth proportional to 10,574.36, 15,850.08 and 6,879.22 is: 10,311.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,574.36 : 15,850.08 = 6,879.22 : x
  2. Step 2: Convert to fraction form
    10,574.36/15,850.08 = 6,879.22/x
  3. Step 3: Cross multiply
    10,574.36x = 15,850.08 × 6,879.22
  4. Step 4: Simplify right side
    10,574.36x = 109,036,187.34
  5. Step 5: Solve for x
    x = 109,036,187.34/10,574.36
  6. Step 6: Final answer
    x = 10,311.37

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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.