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Finding the Fourth Proportional to 33,914,503.70, 50,871,755.55 and 21,000,487.40

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Solution

The fourth proportional to 33,914,503.70, 50,871,755.55 and 21,000,487.40 is: 31,500,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,914,503.70 : 50,871,755.55 = 21,000,487.40 : x
  2. Step 2: Convert to fraction form
    33,914,503.70/50,871,755.55 = 21,000,487.40/x
  3. Step 3: Cross multiply
    33,914,503.70x = 50,871,755.55 × 21,000,487.40
  4. Step 4: Simplify right side
    33,914,503.70x = 1,068,331,661,443,654.88
  5. Step 5: Solve for x
    x = 1,068,331,661,443,654.88/33,914,503.70
  6. Step 6: Final answer
    x = 31,500,731.10

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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.