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Finding the Fourth Proportional to 6,357.45, 8,774.88 and 4,236.54

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Solution

The fourth proportional to 6,357.45, 8,774.88 and 4,236.54 is: 5,847.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,357.45 : 8,774.88 = 4,236.54 : x
  2. Step 2: Convert to fraction form
    6,357.45/8,774.88 = 4,236.54/x
  3. Step 3: Cross multiply
    6,357.45x = 8,774.88 × 4,236.54
  4. Step 4: Simplify right side
    6,357.45x = 37,175,130.12
  5. Step 5: Solve for x
    x = 37,175,130.12/6,357.45
  6. Step 6: Final answer
    x = 5,847.49

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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.