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Finding the Fourth Proportional to 8,662,649.28, 11,954,310.92 and 4,795,087.20

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Solution

The fourth proportional to 8,662,649.28, 11,954,310.92 and 4,795,087.20 is: 6,617,140.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,662,649.28 : 11,954,310.92 = 4,795,087.20 : x
  2. Step 2: Convert to fraction form
    8,662,649.28/11,954,310.92 = 4,795,087.20/x
  3. Step 3: Cross multiply
    8,662,649.28x = 11,954,310.92 × 4,795,087.20
  4. Step 4: Simplify right side
    8,662,649.28x = 57,321,963,277,312.23
  5. Step 5: Solve for x
    x = 57,321,963,277,312.23/8,662,649.28
  6. Step 6: Final answer
    x = 6,617,140.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.