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Finding the Fourth Proportional to 4,966.88, 7,447.62 and 2,047.28

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Solution

The fourth proportional to 4,966.88, 7,447.62 and 2,047.28 is: 3,069.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,966.88 : 7,447.62 = 2,047.28 : x
  2. Step 2: Convert to fraction form
    4,966.88/7,447.62 = 2,047.28/x
  3. Step 3: Cross multiply
    4,966.88x = 7,447.62 × 2,047.28
  4. Step 4: Simplify right side
    4,966.88x = 15,247,363.47
  5. Step 5: Solve for x
    x = 15,247,363.47/4,966.88
  6. Step 6: Final answer
    x = 3,069.81

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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.