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Finding the Fourth Proportional to 11,687,864.50, 17,531,796.75 and 3,168,201.01

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Solution

The fourth proportional to 11,687,864.50, 17,531,796.75 and 3,168,201.01 is: 4,752,301.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,687,864.50 : 17,531,796.75 = 3,168,201.01 : x
  2. Step 2: Convert to fraction form
    11,687,864.50/17,531,796.75 = 3,168,201.01/x
  3. Step 3: Cross multiply
    11,687,864.50x = 17,531,796.75 × 3,168,201.01
  4. Step 4: Simplify right side
    11,687,864.50x = 55,544,256,170,464.71
  5. Step 5: Solve for x
    x = 55,544,256,170,464.71/11,687,864.50
  6. Step 6: Final answer
    x = 4,752,301.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.