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Finding the Third Proportional to 19,927,989 and 42,912,324

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Solution

The third proportional to 19,927,989 and 42,912,324 is: 92,406,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,927,989 : 42,912,324 = 42,912,324 : x
  2. Step 2: Convert to fraction form
    19,927,989/42,912,324 = 42,912,324/x
  3. Step 3: Cross multiply
    19,927,989x = 42,912,324 × 42,912,324
  4. Step 4: Simplify right side
    19,927,989x = 1,841,467,551,080,976
  5. Step 5: Solve for x
    x = 1,841,467,551,080,976/19,927,989
  6. Step 6: Final answer
    x = 92,406,090.30

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.