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Finding the Fourth Proportional to 6,188.63, 8,539.53 and 3,951.81

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Solution

The fourth proportional to 6,188.63, 8,539.53 and 3,951.81 is: 5,453.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,188.63 : 8,539.53 = 3,951.81 : x
  2. Step 2: Convert to fraction form
    6,188.63/8,539.53 = 3,951.81/x
  3. Step 3: Cross multiply
    6,188.63x = 8,539.53 × 3,951.81
  4. Step 4: Simplify right side
    6,188.63x = 33,746,600.05
  5. Step 5: Solve for x
    x = 33,746,600.05/6,188.63
  6. Step 6: Final answer
    x = 5,453.00

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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.