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Finding the Fourth Proportional to 17,272.50, 25,908.75 and 4,960.50

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Solution

The fourth proportional to 17,272.50, 25,908.75 and 4,960.50 is: 7,440.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,272.50 : 25,908.75 = 4,960.50 : x
  2. Step 2: Convert to fraction form
    17,272.50/25,908.75 = 4,960.50/x
  3. Step 3: Cross multiply
    17,272.50x = 25,908.75 × 4,960.50
  4. Step 4: Simplify right side
    17,272.50x = 128,520,354.38
  5. Step 5: Solve for x
    x = 128,520,354.38/17,272.50
  6. Step 6: Final answer
    x = 7,440.75

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Similar ratio
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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.