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Finding the Fourth Proportional to 8,592.55, 12,890.67 and 2,669.32

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Solution

The fourth proportional to 8,592.55, 12,890.67 and 2,669.32 is: 4,004.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,592.55 : 12,890.67 = 2,669.32 : x
  2. Step 2: Convert to fraction form
    8,592.55/12,890.67 = 2,669.32/x
  3. Step 3: Cross multiply
    8,592.55x = 12,890.67 × 2,669.32
  4. Step 4: Simplify right side
    8,592.55x = 34,409,323.24
  5. Step 5: Solve for x
    x = 34,409,323.24/8,592.55
  6. Step 6: Final answer
    x = 4,004.55

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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.