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Finding the Fourth Proportional to 8,289.88, 11,440.05 and 4,563.88

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Solution

The fourth proportional to 8,289.88, 11,440.05 and 4,563.88 is: 6,298.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.88 : 11,440.05 = 4,563.88 : x
  2. Step 2: Convert to fraction form
    8,289.88/11,440.05 = 4,563.88/x
  3. Step 3: Cross multiply
    8,289.88x = 11,440.05 × 4,563.88
  4. Step 4: Simplify right side
    8,289.88x = 52,211,015.39
  5. Step 5: Solve for x
    x = 52,211,015.39/8,289.88
  6. Step 6: Final answer
    x = 6,298.16

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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.