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Finding the Fourth Proportional to 44,641.68, 66,960.60 and 13,476

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Solution

The fourth proportional to 44,641.68, 66,960.60 and 13,476 is: 20,213.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,641.68 : 66,960.60 = 13,476 : x
  2. Step 2: Convert to fraction form
    44,641.68/66,960.60 = 13,476/x
  3. Step 3: Cross multiply
    44,641.68x = 66,960.60 × 13,476
  4. Step 4: Simplify right side
    44,641.68x = 902,361,045.60
  5. Step 5: Solve for x
    x = 902,361,045.60/44,641.68
  6. Step 6: Final answer
    x = 20,213.42

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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.