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Finding the Fourth Proportional to 6,441.21, 8,913.24 and 5,495.58

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Solution

The fourth proportional to 6,441.21, 8,913.24 and 5,495.58 is: 7,604.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441.21 : 8,913.24 = 5,495.58 : x
  2. Step 2: Convert to fraction form
    6,441.21/8,913.24 = 5,495.58/x
  3. Step 3: Cross multiply
    6,441.21x = 8,913.24 × 5,495.58
  4. Step 4: Simplify right side
    6,441.21x = 48,983,423.48
  5. Step 5: Solve for x
    x = 48,983,423.48/6,441.21
  6. Step 6: Final answer
    x = 7,604.69

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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.