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Finding the Fourth Proportional to 44,082.96, 66,124.44 and 12,918.21

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Solution

The fourth proportional to 44,082.96, 66,124.44 and 12,918.21 is: 19,377.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,082.96 : 66,124.44 = 12,918.21 : x
  2. Step 2: Convert to fraction form
    44,082.96/66,124.44 = 12,918.21/x
  3. Step 3: Cross multiply
    44,082.96x = 66,124.44 × 12,918.21
  4. Step 4: Simplify right side
    44,082.96x = 854,209,402.05
  5. Step 5: Solve for x
    x = 854,209,402.05/44,082.96
  6. Step 6: Final answer
    x = 19,377.32

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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.