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Finding the Fourth Proportional to 6,372.59, 8,790.63 and 5,921.56

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Solution

The fourth proportional to 6,372.59, 8,790.63 and 5,921.56 is: 8,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,372.59 : 8,790.63 = 5,921.56 : x
  2. Step 2: Convert to fraction form
    6,372.59/8,790.63 = 5,921.56/x
  3. Step 3: Cross multiply
    6,372.59x = 8,790.63 × 5,921.56
  4. Step 4: Simplify right side
    6,372.59x = 52,054,306.45
  5. Step 5: Solve for x
    x = 52,054,306.45/6,372.59
  6. Step 6: Final answer
    x = 8,168.47

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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.