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Finding the Fourth Proportional to 16,951, 25,426.50 and 4,639

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Solution

The fourth proportional to 16,951, 25,426.50 and 4,639 is: 6,958.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,951 : 25,426.50 = 4,639 : x
  2. Step 2: Convert to fraction form
    16,951/25,426.50 = 4,639/x
  3. Step 3: Cross multiply
    16,951x = 25,426.50 × 4,639
  4. Step 4: Simplify right side
    16,951x = 117,953,533.50
  5. Step 5: Solve for x
    x = 117,953,533.50/16,951
  6. Step 6: Final answer
    x = 6,958.50

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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.