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Finding the Fourth Proportional to 29,938.68, 44,907.48 and 12,408.48

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Solution

The fourth proportional to 29,938.68, 44,907.48 and 12,408.48 is: 18,612.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,938.68 : 44,907.48 = 12,408.48 : x
  2. Step 2: Convert to fraction form
    29,938.68/44,907.48 = 12,408.48/x
  3. Step 3: Cross multiply
    29,938.68x = 44,907.48 × 12,408.48
  4. Step 4: Simplify right side
    29,938.68x = 557,233,567.43
  5. Step 5: Solve for x
    x = 557,233,567.43/29,938.68
  6. Step 6: Final answer
    x = 18,612.50

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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.