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Finding the Fourth Proportional to 6,245.64, 8,627.31 and 5,080.86

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Solution

The fourth proportional to 6,245.64, 8,627.31 and 5,080.86 is: 7,018.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,245.64 : 8,627.31 = 5,080.86 : x
  2. Step 2: Convert to fraction form
    6,245.64/8,627.31 = 5,080.86/x
  3. Step 3: Cross multiply
    6,245.64x = 8,627.31 × 5,080.86
  4. Step 4: Simplify right side
    6,245.64x = 43,834,154.29
  5. Step 5: Solve for x
    x = 43,834,154.29/6,245.64
  6. Step 6: Final answer
    x = 7,018.36

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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.