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Finding the Third Proportional to 7,355,632.78 and 11,480,485.64

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Solution

The third proportional to 7,355,632.78 and 11,480,485.64 is: 17,918,451.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,355,632.78 : 11,480,485.64 = 11,480,485.64 : x
  2. Step 2: Convert to fraction form
    7,355,632.78/11,480,485.64 = 11,480,485.64/x
  3. Step 3: Cross multiply
    7,355,632.78x = 11,480,485.64 × 11,480,485.64
  4. Step 4: Simplify right side
    7,355,632.78x = 131,801,550,544,596.81
  5. Step 5: Solve for x
    x = 131,801,550,544,596.81/7,355,632.78
  6. Step 6: Final answer
    x = 17,918,451.68

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.