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Finding the Fourth Proportional to 4,680.48, 7,028 and 4,472.72

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Solution

The fourth proportional to 4,680.48, 7,028 and 4,472.72 is: 6,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.48 : 7,028 = 4,472.72 : x
  2. Step 2: Convert to fraction form
    4,680.48/7,028 = 4,472.72/x
  3. Step 3: Cross multiply
    4,680.48x = 7,028 × 4,472.72
  4. Step 4: Simplify right side
    4,680.48x = 31,434,276.16
  5. Step 5: Solve for x
    x = 31,434,276.16/4,680.48
  6. Step 6: Final answer
    x = 6,716.04

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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.