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Finding the Fourth Proportional to 10,662.14, 14,707.31 and 6,879.24

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Solution

The fourth proportional to 10,662.14, 14,707.31 and 6,879.24 is: 9,489.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,662.14 : 14,707.31 = 6,879.24 : x
  2. Step 2: Convert to fraction form
    10,662.14/14,707.31 = 6,879.24/x
  3. Step 3: Cross multiply
    10,662.14x = 14,707.31 × 6,879.24
  4. Step 4: Simplify right side
    10,662.14x = 101,175,080.85
  5. Step 5: Solve for x
    x = 101,175,080.85/10,662.14
  6. Step 6: Final answer
    x = 9,489.19

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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.