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Finding the Third Proportional to 4,118,628.38 and 8,578,147.50

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Solution

The third proportional to 4,118,628.38 and 8,578,147.50 is: 17,866,291.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118,628.38 : 8,578,147.50 = 8,578,147.50 : x
  2. Step 2: Convert to fraction form
    4,118,628.38/8,578,147.50 = 8,578,147.50/x
  3. Step 3: Cross multiply
    4,118,628.38x = 8,578,147.50 × 8,578,147.50
  4. Step 4: Simplify right side
    4,118,628.38x = 73,584,614,531,756.25
  5. Step 5: Solve for x
    x = 73,584,614,531,756.25/4,118,628.38
  6. Step 6: Final answer
    x = 17,866,291.36

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.