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Finding the Fourth Proportional to 8,318.56, 11,479.43 and 4,541.58

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Solution

The fourth proportional to 8,318.56, 11,479.43 and 4,541.58 is: 6,267.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.56 : 11,479.43 = 4,541.58 : x
  2. Step 2: Convert to fraction form
    8,318.56/11,479.43 = 4,541.58/x
  3. Step 3: Cross multiply
    8,318.56x = 11,479.43 × 4,541.58
  4. Step 4: Simplify right side
    8,318.56x = 52,134,738.35
  5. Step 5: Solve for x
    x = 52,134,738.35/8,318.56
  6. Step 6: Final answer
    x = 6,267.28

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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.