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Finding the Fourth Proportional to 8,912.58, 13,363.20 and 4,524

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Solution

The fourth proportional to 8,912.58, 13,363.20 and 4,524 is: 6,783.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.58 : 13,363.20 = 4,524 : x
  2. Step 2: Convert to fraction form
    8,912.58/13,363.20 = 4,524/x
  3. Step 3: Cross multiply
    8,912.58x = 13,363.20 × 4,524
  4. Step 4: Simplify right side
    8,912.58x = 60,455,116.80
  5. Step 5: Solve for x
    x = 60,455,116.80/8,912.58
  6. Step 6: Final answer
    x = 6,783.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.