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Finding the Third Proportional to 20,616,155.50 and 40,711,925.50

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Solution

The third proportional to 20,616,155.50 and 40,711,925.50 is: 80,396,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616,155.50 : 40,711,925.50 = 40,711,925.50 : x
  2. Step 2: Convert to fraction form
    20,616,155.50/40,711,925.50 = 40,711,925.50/x
  3. Step 3: Cross multiply
    20,616,155.50x = 40,711,925.50 × 40,711,925.50
  4. Step 4: Simplify right side
    20,616,155.50x = 1,657,460,877,917,550.25
  5. Step 5: Solve for x
    x = 1,657,460,877,917,550.25/20,616,155.50
  6. Step 6: Final answer
    x = 80,396,215.38

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.