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Finding the Fourth Proportional to 10,965,304.80, 16,449,512.40 and 3,391,480.80

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Solution

The fourth proportional to 10,965,304.80, 16,449,512.40 and 3,391,480.80 is: 5,087,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,965,304.80 : 16,449,512.40 = 3,391,480.80 : x
  2. Step 2: Convert to fraction form
    10,965,304.80/16,449,512.40 = 3,391,480.80/x
  3. Step 3: Cross multiply
    10,965,304.80x = 16,449,512.40 × 3,391,480.80
  4. Step 4: Simplify right side
    10,965,304.80x = 55,788,205,473,961.92
  5. Step 5: Solve for x
    x = 55,788,205,473,961.92/10,965,304.80
  6. Step 6: Final answer
    x = 5,087,702.21

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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.