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Finding the Fourth Proportional to 44,920, 67,354.08 and 19,960

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Solution

The fourth proportional to 44,920, 67,354.08 and 19,960 is: 29,928.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,920 : 67,354.08 = 19,960 : x
  2. Step 2: Convert to fraction form
    44,920/67,354.08 = 19,960/x
  3. Step 3: Cross multiply
    44,920x = 67,354.08 × 19,960
  4. Step 4: Simplify right side
    44,920x = 1,344,387,436.80
  5. Step 5: Solve for x
    x = 1,344,387,436.80/44,920
  6. Step 6: Final answer
    x = 29,928.48

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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.