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Finding the Fourth Proportional to 30,004.70, 44,994.08 and 12,462.54

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Solution

The fourth proportional to 30,004.70, 44,994.08 and 12,462.54 is: 18,688.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,004.70 : 44,994.08 = 12,462.54 : x
  2. Step 2: Convert to fraction form
    30,004.70/44,994.08 = 12,462.54/x
  3. Step 3: Cross multiply
    30,004.70x = 44,994.08 × 12,462.54
  4. Step 4: Simplify right side
    30,004.70x = 560,740,521.76
  5. Step 5: Solve for x
    x = 560,740,521.76/30,004.70
  6. Step 6: Final answer
    x = 18,688.42

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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.