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Finding the Fourth Proportional to 4,443.76, 6,651 and 3,957.76

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Solution

The fourth proportional to 4,443.76, 6,651 and 3,957.76 is: 5,923.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,443.76 : 6,651 = 3,957.76 : x
  2. Step 2: Convert to fraction form
    4,443.76/6,651 = 3,957.76/x
  3. Step 3: Cross multiply
    4,443.76x = 6,651 × 3,957.76
  4. Step 4: Simplify right side
    4,443.76x = 26,323,061.76
  5. Step 5: Solve for x
    x = 26,323,061.76/4,443.76
  6. Step 6: Final answer
    x = 5,923.60

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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.