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Finding the Fourth Proportional to 11,975,425.40, 17,963,138.10 and 3,456,039.80

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Solution

The fourth proportional to 11,975,425.40, 17,963,138.10 and 3,456,039.80 is: 5,184,059.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975,425.40 : 17,963,138.10 = 3,456,039.80 : x
  2. Step 2: Convert to fraction form
    11,975,425.40/17,963,138.10 = 3,456,039.80/x
  3. Step 3: Cross multiply
    11,975,425.40x = 17,963,138.10 × 3,456,039.80
  4. Step 4: Simplify right side
    11,975,425.40x = 62,081,320,206,496.38
  5. Step 5: Solve for x
    x = 62,081,320,206,496.38/11,975,425.40
  6. Step 6: Final answer
    x = 5,184,059.70

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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.