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Finding the Fourth Proportional to 18,605.16, 25,649.46 and 14,841.09

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Solution

The fourth proportional to 18,605.16, 25,649.46 and 14,841.09 is: 20,460.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.16 : 25,649.46 = 14,841.09 : x
  2. Step 2: Convert to fraction form
    18,605.16/25,649.46 = 14,841.09/x
  3. Step 3: Cross multiply
    18,605.16x = 25,649.46 × 14,841.09
  4. Step 4: Simplify right side
    18,605.16x = 380,665,944.31
  5. Step 5: Solve for x
    x = 380,665,944.31/18,605.16
  6. Step 6: Final answer
    x = 20,460.23

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1.5x scale

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.