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Finding the Third Proportional to 30,603,699.75 and 64,661,400.75

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Solution

The third proportional to 30,603,699.75 and 64,661,400.75 is: 136,620,630.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,603,699.75 : 64,661,400.75 = 64,661,400.75 : x
  2. Step 2: Convert to fraction form
    30,603,699.75/64,661,400.75 = 64,661,400.75/x
  3. Step 3: Cross multiply
    30,603,699.75x = 64,661,400.75 × 64,661,400.75
  4. Step 4: Simplify right side
    30,603,699.75x = 4,181,096,746,952,100.50
  5. Step 5: Solve for x
    x = 4,181,096,746,952,100.50/30,603,699.75
  6. Step 6: Final answer
    x = 136,620,630.22

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.