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Finding the Third Proportional to 11,666,785.50 and 18,260,066.25

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Solution

The third proportional to 11,666,785.50 and 18,260,066.25 is: 28,579,424.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,666,785.50 : 18,260,066.25 = 18,260,066.25 : x
  2. Step 2: Convert to fraction form
    11,666,785.50/18,260,066.25 = 18,260,066.25/x
  3. Step 3: Cross multiply
    11,666,785.50x = 18,260,066.25 × 18,260,066.25
  4. Step 4: Simplify right side
    11,666,785.50x = 333,430,019,454,389.06
  5. Step 5: Solve for x
    x = 333,430,019,454,389.06/11,666,785.50
  6. Step 6: Final answer
    x = 28,579,424.85

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.