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Finding the Fourth Proportional to 45,878.92, 68,797.26 and 18,157.96

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Solution

The fourth proportional to 45,878.92, 68,797.26 and 18,157.96 is: 27,228.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,878.92 : 68,797.26 = 18,157.96 : x
  2. Step 2: Convert to fraction form
    45,878.92/68,797.26 = 18,157.96/x
  3. Step 3: Cross multiply
    45,878.92x = 68,797.26 × 18,157.96
  4. Step 4: Simplify right side
    45,878.92x = 1,249,217,895.19
  5. Step 5: Solve for x
    x = 1,249,217,895.19/45,878.92
  6. Step 6: Final answer
    x = 27,228.58

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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.