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Finding the Fourth Proportional to 18,575.40, 27,863.10 and 16,674.60

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Solution

The fourth proportional to 18,575.40, 27,863.10 and 16,674.60 is: 25,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,575.40 : 27,863.10 = 16,674.60 : x
  2. Step 2: Convert to fraction form
    18,575.40/27,863.10 = 16,674.60/x
  3. Step 3: Cross multiply
    18,575.40x = 27,863.10 × 16,674.60
  4. Step 4: Simplify right side
    18,575.40x = 464,606,047.26
  5. Step 5: Solve for x
    x = 464,606,047.26/18,575.40
  6. Step 6: Final answer
    x = 25,011.90

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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.