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Finding the Fourth Proportional to 6,120.64, 9,181.14 and 4,053.88

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Solution

The fourth proportional to 6,120.64, 9,181.14 and 4,053.88 is: 6,080.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.64 : 9,181.14 = 4,053.88 : x
  2. Step 2: Convert to fraction form
    6,120.64/9,181.14 = 4,053.88/x
  3. Step 3: Cross multiply
    6,120.64x = 9,181.14 × 4,053.88
  4. Step 4: Simplify right side
    6,120.64x = 37,219,239.82
  5. Step 5: Solve for x
    x = 37,219,239.82/6,120.64
  6. Step 6: Final answer
    x = 6,080.94

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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.