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Finding the Fourth Proportional to 44,394.25, 66,612.03 and 19,431

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Solution

The fourth proportional to 44,394.25, 66,612.03 and 19,431 is: 29,155.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,394.25 : 66,612.03 = 19,431 : x
  2. Step 2: Convert to fraction form
    44,394.25/66,612.03 = 19,431/x
  3. Step 3: Cross multiply
    44,394.25x = 66,612.03 × 19,431
  4. Step 4: Simplify right side
    44,394.25x = 1,294,338,354.93
  5. Step 5: Solve for x
    x = 1,294,338,354.93/44,394.25
  6. Step 6: Final answer
    x = 29,155.54

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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.