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Finding the Third Proportional to 12,996,986.81 and 28,161,245.06

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Solution

The third proportional to 12,996,986.81 and 28,161,245.06 is: 61,018,429.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,996,986.81 : 28,161,245.06 = 28,161,245.06 : x
  2. Step 2: Convert to fraction form
    12,996,986.81/28,161,245.06 = 28,161,245.06/x
  3. Step 3: Cross multiply
    12,996,986.81x = 28,161,245.06 × 28,161,245.06
  4. Step 4: Simplify right side
    12,996,986.81x = 793,055,723,470,180.62
  5. Step 5: Solve for x
    x = 793,055,723,470,180.62/12,996,986.81
  6. Step 6: Final answer
    x = 61,018,429.50

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.