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Finding the Fourth Proportional to 17,287.76, 25,931.46 and 5,600.72

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Solution

The fourth proportional to 17,287.76, 25,931.46 and 5,600.72 is: 8,401.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,287.76 : 25,931.46 = 5,600.72 : x
  2. Step 2: Convert to fraction form
    17,287.76/25,931.46 = 5,600.72/x
  3. Step 3: Cross multiply
    17,287.76x = 25,931.46 × 5,600.72
  4. Step 4: Simplify right side
    17,287.76x = 145,234,846.65
  5. Step 5: Solve for x
    x = 145,234,846.65/17,287.76
  6. Step 6: Final answer
    x = 8,401.02

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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.