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Finding the Fourth Proportional to 18,203.89, 27,309.73 and 10,310.13

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Solution

The fourth proportional to 18,203.89, 27,309.73 and 10,310.13 is: 15,467.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203.89 : 27,309.73 = 10,310.13 : x
  2. Step 2: Convert to fraction form
    18,203.89/27,309.73 = 10,310.13/x
  3. Step 3: Cross multiply
    18,203.89x = 27,309.73 × 10,310.13
  4. Step 4: Simplify right side
    18,203.89x = 281,566,962.53
  5. Step 5: Solve for x
    x = 281,566,962.53/18,203.89
  6. Step 6: Final answer
    x = 15,467.41

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1.5x scale

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.