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Finding the Third Proportional to 18,916,251 and 39,342,210.75

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Solution

The third proportional to 18,916,251 and 39,342,210.75 is: 81,824,329.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916,251 : 39,342,210.75 = 39,342,210.75 : x
  2. Step 2: Convert to fraction form
    18,916,251/39,342,210.75 = 39,342,210.75/x
  3. Step 3: Cross multiply
    18,916,251x = 39,342,210.75 × 39,342,210.75
  4. Step 4: Simplify right side
    18,916,251x = 1,547,809,546,697,415.50
  5. Step 5: Solve for x
    x = 1,547,809,546,697,415.50/18,916,251
  6. Step 6: Final answer
    x = 81,824,329.08

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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.