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Finding the Fourth Proportional to 18,765,259.25, 25,895,882.79 and 10,616,497.25

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Solution

The fourth proportional to 18,765,259.25, 25,895,882.79 and 10,616,497.25 is: 14,650,667.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765,259.25 : 25,895,882.79 = 10,616,497.25 : x
  2. Step 2: Convert to fraction form
    18,765,259.25/25,895,882.79 = 10,616,497.25/x
  3. Step 3: Cross multiply
    18,765,259.25x = 25,895,882.79 × 10,616,497.25
  4. Step 4: Simplify right side
    18,765,259.25x = 274,923,568,426,357.31
  5. Step 5: Solve for x
    x = 274,923,568,426,357.31/18,765,259.25
  6. Step 6: Final answer
    x = 14,650,667.21

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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.