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Finding the Fourth Proportional to 54,982.80, 82,401.30 and 48,713.40

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Solution

The fourth proportional to 54,982.80, 82,401.30 and 48,713.40 is: 73,005.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,982.80 : 82,401.30 = 48,713.40 : x
  2. Step 2: Convert to fraction form
    54,982.80/82,401.30 = 48,713.40/x
  3. Step 3: Cross multiply
    54,982.80x = 82,401.30 × 48,713.40
  4. Step 4: Simplify right side
    54,982.80x = 4,014,047,487.42
  5. Step 5: Solve for x
    x = 4,014,047,487.42/54,982.80
  6. Step 6: Final answer
    x = 73,005.51

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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.