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Finding the Third Proportional to 20,697,730 and 45,019,558

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Solution

The third proportional to 20,697,730 and 45,019,558 is: 97,921,878.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697,730 : 45,019,558 = 45,019,558 : x
  2. Step 2: Convert to fraction form
    20,697,730/45,019,558 = 45,019,558/x
  3. Step 3: Cross multiply
    20,697,730x = 45,019,558 × 45,019,558
  4. Step 4: Simplify right side
    20,697,730x = 2,026,760,602,515,364
  5. Step 5: Solve for x
    x = 2,026,760,602,515,364/20,697,730
  6. Step 6: Final answer
    x = 97,921,878.51

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.