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Finding the Fourth Proportional to 8,804,987.80, 13,207,481.70 and 3,125,786.20

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Solution

The fourth proportional to 8,804,987.80, 13,207,481.70 and 3,125,786.20 is: 4,688,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,804,987.80 : 13,207,481.70 = 3,125,786.20 : x
  2. Step 2: Convert to fraction form
    8,804,987.80/13,207,481.70 = 3,125,786.20/x
  3. Step 3: Cross multiply
    8,804,987.80x = 13,207,481.70 × 3,125,786.20
  4. Step 4: Simplify right side
    8,804,987.80x = 41,283,764,034,612.54
  5. Step 5: Solve for x
    x = 41,283,764,034,612.54/8,804,987.80
  6. Step 6: Final answer
    x = 4,688,679.30

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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.