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Finding the Fourth Proportional to 13,197,645.86, 19,797,964.16 and 11,841,476.22

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Solution

The fourth proportional to 13,197,645.86, 19,797,964.16 and 11,841,476.22 is: 17,763,556.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197,645.86 : 19,797,964.16 = 11,841,476.22 : x
  2. Step 2: Convert to fraction form
    13,197,645.86/19,797,964.16 = 11,841,476.22/x
  3. Step 3: Cross multiply
    13,197,645.86x = 19,797,964.16 × 11,841,476.22
  4. Step 4: Simplify right side
    13,197,645.86x = 234,437,121,805,052.28
  5. Step 5: Solve for x
    x = 234,437,121,805,052.28/13,197,645.86
  6. Step 6: Final answer
    x = 17,763,556.04

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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.