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Finding the Fourth Proportional to 4,983.76, 7,472.28 and 2,672.08

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Solution

The fourth proportional to 4,983.76, 7,472.28 and 2,672.08 is: 4,006.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.76 : 7,472.28 = 2,672.08 : x
  2. Step 2: Convert to fraction form
    4,983.76/7,472.28 = 2,672.08/x
  3. Step 3: Cross multiply
    4,983.76x = 7,472.28 × 2,672.08
  4. Step 4: Simplify right side
    4,983.76x = 19,966,529.94
  5. Step 5: Solve for x
    x = 19,966,529.94/4,983.76
  6. Step 6: Final answer
    x = 4,006.32

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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.