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Finding the Fourth Proportional to 17,114.80, 25,661.10 and 7,251.40

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Solution

The fourth proportional to 17,114.80, 25,661.10 and 7,251.40 is: 10,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,114.80 : 25,661.10 = 7,251.40 : x
  2. Step 2: Convert to fraction form
    17,114.80/25,661.10 = 7,251.40/x
  3. Step 3: Cross multiply
    17,114.80x = 25,661.10 × 7,251.40
  4. Step 4: Simplify right side
    17,114.80x = 186,078,900.54
  5. Step 5: Solve for x
    x = 186,078,900.54/17,114.80
  6. Step 6: Final answer
    x = 10,872.40

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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.