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Finding the Fourth Proportional to 16,139, 24,208.50 and 5,195

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Solution

The fourth proportional to 16,139, 24,208.50 and 5,195 is: 7,792.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,139 : 24,208.50 = 5,195 : x
  2. Step 2: Convert to fraction form
    16,139/24,208.50 = 5,195/x
  3. Step 3: Cross multiply
    16,139x = 24,208.50 × 5,195
  4. Step 4: Simplify right side
    16,139x = 125,763,157.50
  5. Step 5: Solve for x
    x = 125,763,157.50/16,139
  6. Step 6: Final answer
    x = 7,792.50

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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.