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Finding the Fourth Proportional to 44,381.80, 66,583.98 and 13,217.32

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Solution

The fourth proportional to 44,381.80, 66,583.98 and 13,217.32 is: 19,829.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,381.80 : 66,583.98 = 13,217.32 : x
  2. Step 2: Convert to fraction form
    44,381.80/66,583.98 = 13,217.32/x
  3. Step 3: Cross multiply
    44,381.80x = 66,583.98 × 13,217.32
  4. Step 4: Simplify right side
    44,381.80x = 880,061,770.53
  5. Step 5: Solve for x
    x = 880,061,770.53/44,381.80
  6. Step 6: Final answer
    x = 19,829.34

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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.