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Finding the Fourth Proportional to 13,773,693.79, 19,009,775.96 and 7,976,262.97

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Solution

The fourth proportional to 13,773,693.79, 19,009,775.96 and 7,976,262.97 is: 11,008,446.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773,693.79 : 19,009,775.96 = 7,976,262.97 : x
  2. Step 2: Convert to fraction form
    13,773,693.79/19,009,775.96 = 7,976,262.97/x
  3. Step 3: Cross multiply
    13,773,693.79x = 19,009,775.96 × 7,976,262.97
  4. Step 4: Simplify right side
    13,773,693.79x = 151,626,972,057,744.22
  5. Step 5: Solve for x
    x = 151,626,972,057,744.22/13,773,693.79
  6. Step 6: Final answer
    x = 11,008,446.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.