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Finding the Third Proportional to 9,142,539 and 19,660,998

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Solution

The third proportional to 9,142,539 and 19,660,998 is: 42,280,907.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,142,539 : 19,660,998 = 19,660,998 : x
  2. Step 2: Convert to fraction form
    9,142,539/19,660,998 = 19,660,998/x
  3. Step 3: Cross multiply
    9,142,539x = 19,660,998 × 19,660,998
  4. Step 4: Simplify right side
    9,142,539x = 386,554,842,356,004
  5. Step 5: Solve for x
    x = 386,554,842,356,004/9,142,539
  6. Step 6: Final answer
    x = 42,280,907.13

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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.