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Finding the Fourth Proportional to 48,677.40, 73,007.82 and 13,608.90

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Solution

The fourth proportional to 48,677.40, 73,007.82 and 13,608.90 is: 20,411.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,677.40 : 73,007.82 = 13,608.90 : x
  2. Step 2: Convert to fraction form
    48,677.40/73,007.82 = 13,608.90/x
  3. Step 3: Cross multiply
    48,677.40x = 73,007.82 × 13,608.90
  4. Step 4: Simplify right side
    48,677.40x = 993,556,121.60
  5. Step 5: Solve for x
    x = 993,556,121.60/48,677.40
  6. Step 6: Final answer
    x = 20,411.04

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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.