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Finding the Fourth Proportional to 9,687.88, 14,532.54 and 2,762.92

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Solution

The fourth proportional to 9,687.88, 14,532.54 and 2,762.92 is: 4,144.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687.88 : 14,532.54 = 2,762.92 : x
  2. Step 2: Convert to fraction form
    9,687.88/14,532.54 = 2,762.92/x
  3. Step 3: Cross multiply
    9,687.88x = 14,532.54 × 2,762.92
  4. Step 4: Simplify right side
    9,687.88x = 40,152,245.42
  5. Step 5: Solve for x
    x = 40,152,245.42/9,687.88
  6. Step 6: Final answer
    x = 4,144.59

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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.