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Finding the Fourth Proportional to 66,243,608, 99,365,412 and 18,374,552

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Solution

The fourth proportional to 66,243,608, 99,365,412 and 18,374,552 is: 27,561,828

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,243,608 : 99,365,412 = 18,374,552 : x
  2. Step 2: Convert to fraction form
    66,243,608/99,365,412 = 18,374,552/x
  3. Step 3: Cross multiply
    66,243,608x = 99,365,412 × 18,374,552
  4. Step 4: Simplify right side
    66,243,608x = 1,825,794,929,795,424
  5. Step 5: Solve for x
    x = 1,825,794,929,795,424/66,243,608
  6. Step 6: Final answer
    x = 27,561,828

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.