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Finding the Fourth Proportional to 18,168.57, 25,073.28 and 10,619.64

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Solution

The fourth proportional to 18,168.57, 25,073.28 and 10,619.64 is: 14,655.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,168.57 : 25,073.28 = 10,619.64 : x
  2. Step 2: Convert to fraction form
    18,168.57/25,073.28 = 10,619.64/x
  3. Step 3: Cross multiply
    18,168.57x = 25,073.28 × 10,619.64
  4. Step 4: Simplify right side
    18,168.57x = 266,269,207.22
  5. Step 5: Solve for x
    x = 266,269,207.22/18,168.57
  6. Step 6: Final answer
    x = 14,655.49

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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.