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Finding the Fourth Proportional to 9,125.63, 13,687.91 and 2,551.67

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Solution

The fourth proportional to 9,125.63, 13,687.91 and 2,551.67 is: 3,827.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.63 : 13,687.91 = 2,551.67 : x
  2. Step 2: Convert to fraction form
    9,125.63/13,687.91 = 2,551.67/x
  3. Step 3: Cross multiply
    9,125.63x = 13,687.91 × 2,551.67
  4. Step 4: Simplify right side
    9,125.63x = 34,927,016.55
  5. Step 5: Solve for x
    x = 34,927,016.55/9,125.63
  6. Step 6: Final answer
    x = 3,827.35

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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.