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Finding the Fourth Proportional to 43,841.76, 65,809.44 and 18,894.12

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Solution

The fourth proportional to 43,841.76, 65,809.44 and 18,894.12 is: 28,361.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,841.76 : 65,809.44 = 18,894.12 : x
  2. Step 2: Convert to fraction form
    43,841.76/65,809.44 = 18,894.12/x
  3. Step 3: Cross multiply
    43,841.76x = 65,809.44 × 18,894.12
  4. Step 4: Simplify right side
    43,841.76x = 1,243,411,456.49
  5. Step 5: Solve for x
    x = 1,243,411,456.49/43,841.76
  6. Step 6: Final answer
    x = 28,361.35

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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.