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Finding the Third Proportional to 7,772,160.75 and 12,190,704.75

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Solution

The third proportional to 7,772,160.75 and 12,190,704.75 is: 19,121,231.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772,160.75 : 12,190,704.75 = 12,190,704.75 : x
  2. Step 2: Convert to fraction form
    7,772,160.75/12,190,704.75 = 12,190,704.75/x
  3. Step 3: Cross multiply
    7,772,160.75x = 12,190,704.75 × 12,190,704.75
  4. Step 4: Simplify right side
    7,772,160.75x = 148,613,282,301,672.56
  5. Step 5: Solve for x
    x = 148,613,282,301,672.56/7,772,160.75
  6. Step 6: Final answer
    x = 19,121,231.16

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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.