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Finding the Fourth Proportional to 6,276.87, 8,661.74 and 3,444.20

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Solution

The fourth proportional to 6,276.87, 8,661.74 and 3,444.20 is: 4,752.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,276.87 : 8,661.74 = 3,444.20 : x
  2. Step 2: Convert to fraction form
    6,276.87/8,661.74 = 3,444.20/x
  3. Step 3: Cross multiply
    6,276.87x = 8,661.74 × 3,444.20
  4. Step 4: Simplify right side
    6,276.87x = 29,832,741.56
  5. Step 5: Solve for x
    x = 29,832,741.56/6,276.87
  6. Step 6: Final answer
    x = 4,752.81

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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.