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Finding the Fourth Proportional to 44,174, 66,261 and 13,008.80

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Solution

The fourth proportional to 44,174, 66,261 and 13,008.80 is: 19,513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,174 : 66,261 = 13,008.80 : x
  2. Step 2: Convert to fraction form
    44,174/66,261 = 13,008.80/x
  3. Step 3: Cross multiply
    44,174x = 66,261 × 13,008.80
  4. Step 4: Simplify right side
    44,174x = 861,976,096.80
  5. Step 5: Solve for x
    x = 861,976,096.80/44,174
  6. Step 6: Final answer
    x = 19,513.20

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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.