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Finding the Fourth Proportional to 12,665,108, 18,997,662 and 5,573,396

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Solution

The fourth proportional to 12,665,108, 18,997,662 and 5,573,396 is: 8,360,094

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,665,108 : 18,997,662 = 5,573,396 : x
  2. Step 2: Convert to fraction form
    12,665,108/18,997,662 = 5,573,396/x
  3. Step 3: Cross multiply
    12,665,108x = 18,997,662 × 5,573,396
  4. Step 4: Simplify right side
    12,665,108x = 105,881,493,400,152
  5. Step 5: Solve for x
    x = 105,881,493,400,152/12,665,108
  6. Step 6: Final answer
    x = 8,360,094

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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.