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Finding the Fourth Proportional to 9,763.20, 14,623.20 and 8,035.20

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Solution

The fourth proportional to 9,763.20, 14,623.20 and 8,035.20 is: 12,035.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,763.20 : 14,623.20 = 8,035.20 : x
  2. Step 2: Convert to fraction form
    9,763.20/14,623.20 = 8,035.20/x
  3. Step 3: Cross multiply
    9,763.20x = 14,623.20 × 8,035.20
  4. Step 4: Simplify right side
    9,763.20x = 117,500,336.64
  5. Step 5: Solve for x
    x = 117,500,336.64/9,763.20
  6. Step 6: Final answer
    x = 12,035.02

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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.