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Finding the Third Proportional to 8,878,663.13 and 19,485,511.88

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Solution

The third proportional to 8,878,663.13 and 19,485,511.88 is: 42,763,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878,663.13 : 19,485,511.88 = 19,485,511.88 : x
  2. Step 2: Convert to fraction form
    8,878,663.13/19,485,511.88 = 19,485,511.88/x
  3. Step 3: Cross multiply
    8,878,663.13x = 19,485,511.88 × 19,485,511.88
  4. Step 4: Simplify right side
    8,878,663.13x = 379,685,173,030,766
  5. Step 5: Solve for x
    x = 379,685,173,030,766/8,878,663.13
  6. Step 6: Final answer
    x = 42,763,777.35

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.