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Finding the Fourth Proportional to 6,318.53, 9,478.22 and 2,621.06

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Solution

The fourth proportional to 6,318.53, 9,478.22 and 2,621.06 is: 3,931.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.53 : 9,478.22 = 2,621.06 : x
  2. Step 2: Convert to fraction form
    6,318.53/9,478.22 = 2,621.06/x
  3. Step 3: Cross multiply
    6,318.53x = 9,478.22 × 2,621.06
  4. Step 4: Simplify right side
    6,318.53x = 24,842,958.36
  5. Step 5: Solve for x
    x = 24,842,958.36/6,318.53
  6. Step 6: Final answer
    x = 3,931.76

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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.