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Finding the Fourth Proportional to 4,170.76, 6,255.66 and 1,573

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Solution

The fourth proportional to 4,170.76, 6,255.66 and 1,573 is: 2,359.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,170.76 : 6,255.66 = 1,573 : x
  2. Step 2: Convert to fraction form
    4,170.76/6,255.66 = 1,573/x
  3. Step 3: Cross multiply
    4,170.76x = 6,255.66 × 1,573
  4. Step 4: Simplify right side
    4,170.76x = 9,840,153.18
  5. Step 5: Solve for x
    x = 9,840,153.18/4,170.76
  6. Step 6: Final answer
    x = 2,359.32

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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.