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Finding the Third Proportional to 4,782,619.13 and 9,765,979.88

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Solution

The third proportional to 4,782,619.13 and 9,765,979.88 is: 19,941,868.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782,619.13 : 9,765,979.88 = 9,765,979.88 : x
  2. Step 2: Convert to fraction form
    4,782,619.13/9,765,979.88 = 9,765,979.88/x
  3. Step 3: Cross multiply
    4,782,619.13x = 9,765,979.88 × 9,765,979.88
  4. Step 4: Simplify right side
    4,782,619.13x = 95,374,362,918,905.02
  5. Step 5: Solve for x
    x = 95,374,362,918,905.02/4,782,619.13
  6. Step 6: Final answer
    x = 19,941,868.76

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.