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Finding the Fourth Proportional to 29,940.81, 44,911.64 and 14,354.79

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Solution

The fourth proportional to 29,940.81, 44,911.64 and 14,354.79 is: 21,532.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,940.81 : 44,911.64 = 14,354.79 : x
  2. Step 2: Convert to fraction form
    29,940.81/44,911.64 = 14,354.79/x
  3. Step 3: Cross multiply
    29,940.81x = 44,911.64 × 14,354.79
  4. Step 4: Simplify right side
    29,940.81x = 644,697,196.64
  5. Step 5: Solve for x
    x = 644,697,196.64/29,940.81
  6. Step 6: Final answer
    x = 21,532.39

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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.