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Finding the Fourth Proportional to 48,751.80, 73,119.52 and 13,683.25

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Solution

The fourth proportional to 48,751.80, 73,119.52 and 13,683.25 is: 20,522.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,751.80 : 73,119.52 = 13,683.25 : x
  2. Step 2: Convert to fraction form
    48,751.80/73,119.52 = 13,683.25/x
  3. Step 3: Cross multiply
    48,751.80x = 73,119.52 × 13,683.25
  4. Step 4: Simplify right side
    48,751.80x = 1,000,512,672.04
  5. Step 5: Solve for x
    x = 1,000,512,672.04/48,751.80
  6. Step 6: Final answer
    x = 20,522.58

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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.