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Finding the Fourth Proportional to 18,765,257.25, 25,895,880.03 and 10,616,495.25

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Solution

The fourth proportional to 18,765,257.25, 25,895,880.03 and 10,616,495.25 is: 14,650,664.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765,257.25 : 25,895,880.03 = 10,616,495.25 : x
  2. Step 2: Convert to fraction form
    18,765,257.25/25,895,880.03 = 10,616,495.25/x
  3. Step 3: Cross multiply
    18,765,257.25x = 25,895,880.03 × 10,616,495.25
  4. Step 4: Simplify right side
    18,765,257.25x = 274,923,487,333,064.88
  5. Step 5: Solve for x
    x = 274,923,487,333,064.88/18,765,257.25
  6. Step 6: Final answer
    x = 14,650,664.45

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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.