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Finding the Fourth Proportional to 44,885.80, 67,317.90 and 13,721.32

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Solution

The fourth proportional to 44,885.80, 67,317.90 and 13,721.32 is: 20,578.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,885.80 : 67,317.90 = 13,721.32 : x
  2. Step 2: Convert to fraction form
    44,885.80/67,317.90 = 13,721.32/x
  3. Step 3: Cross multiply
    44,885.80x = 67,317.90 × 13,721.32
  4. Step 4: Simplify right side
    44,885.80x = 923,690,447.63
  5. Step 5: Solve for x
    x = 923,690,447.63/44,885.80
  6. Step 6: Final answer
    x = 20,578.68

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1.5x scale

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.