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Finding the Third Proportional to 8,834,143.50 and 18,686,851.88

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Solution

The third proportional to 8,834,143.50 and 18,686,851.88 is: 39,528,272.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,834,143.50 : 18,686,851.88 = 18,686,851.88 : x
  2. Step 2: Convert to fraction form
    8,834,143.50/18,686,851.88 = 18,686,851.88/x
  3. Step 3: Cross multiply
    8,834,143.50x = 18,686,851.88 × 18,686,851.88
  4. Step 4: Simplify right side
    8,834,143.50x = 349,198,432,998,191
  5. Step 5: Solve for x
    x = 349,198,432,998,191/8,834,143.50
  6. Step 6: Final answer
    x = 39,528,272.66

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.