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Finding the Fourth Proportional to 18,441,628.70, 27,662,443.05 and 17,181,916.70

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Solution

The fourth proportional to 18,441,628.70, 27,662,443.05 and 17,181,916.70 is: 25,772,875.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441,628.70 : 27,662,443.05 = 17,181,916.70 : x
  2. Step 2: Convert to fraction form
    18,441,628.70/27,662,443.05 = 17,181,916.70/x
  3. Step 3: Cross multiply
    18,441,628.70x = 27,662,443.05 × 17,181,916.70
  4. Step 4: Simplify right side
    18,441,628.70x = 475,293,792,203,593.94
  5. Step 5: Solve for x
    x = 475,293,792,203,593.94/18,441,628.70
  6. Step 6: Final answer
    x = 25,772,875.05

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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.