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Finding the Fourth Proportional to 17,951.63, 26,931.08 and 7,563.38

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Solution

The fourth proportional to 17,951.63, 26,931.08 and 7,563.38 is: 11,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,951.63 : 26,931.08 = 7,563.38 : x
  2. Step 2: Convert to fraction form
    17,951.63/26,931.08 = 7,563.38/x
  3. Step 3: Cross multiply
    17,951.63x = 26,931.08 × 7,563.38
  4. Step 4: Simplify right side
    17,951.63x = 203,689,876.10
  5. Step 5: Solve for x
    x = 203,689,876.10/17,951.63
  6. Step 6: Final answer
    x = 11,346.60

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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.