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Finding the Fourth Proportional to 12,331,431.45, 17,292,347.55 and 12,331,431.45

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Solution

The fourth proportional to 12,331,431.45, 17,292,347.55 and 12,331,431.45 is: 17,292,347.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331,431.45 : 17,292,347.55 = 12,331,431.45 : x
  2. Step 2: Convert to fraction form
    12,331,431.45/17,292,347.55 = 12,331,431.45/x
  3. Step 3: Cross multiply
    12,331,431.45x = 17,292,347.55 × 12,331,431.45
  4. Step 4: Simplify right side
    12,331,431.45x = 213,239,398,422,400.44
  5. Step 5: Solve for x
    x = 213,239,398,422,400.44/12,331,431.45
  6. Step 6: Final answer
    x = 17,292,347.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.