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Finding the Fourth Proportional to 33,914,503.20, 50,871,754.80 and 21,000,486.90

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Solution

The fourth proportional to 33,914,503.20, 50,871,754.80 and 21,000,486.90 is: 31,500,730.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,914,503.20 : 50,871,754.80 = 21,000,486.90 : x
  2. Step 2: Convert to fraction form
    33,914,503.20/50,871,754.80 = 21,000,486.90/x
  3. Step 3: Cross multiply
    33,914,503.20x = 50,871,754.80 × 21,000,486.90
  4. Step 4: Simplify right side
    33,914,503.20x = 1,068,331,620,257,412
  5. Step 5: Solve for x
    x = 1,068,331,620,257,412/33,914,503.20
  6. Step 6: Final answer
    x = 31,500,730.35

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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.