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Finding the Fourth Proportional to 66,847.95, 100,269.36 and 16,929.81

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Solution

The fourth proportional to 66,847.95, 100,269.36 and 16,929.81 is: 25,394.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,847.95 : 100,269.36 = 16,929.81 : x
  2. Step 2: Convert to fraction form
    66,847.95/100,269.36 = 16,929.81/x
  3. Step 3: Cross multiply
    66,847.95x = 100,269.36 × 16,929.81
  4. Step 4: Simplify right side
    66,847.95x = 1,697,541,213.62
  5. Step 5: Solve for x
    x = 1,697,541,213.62/66,847.95
  6. Step 6: Final answer
    x = 25,394.07

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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.