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Finding the Fourth Proportional to 7,179.84, 9,907.02 and 4,346.73

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Solution

The fourth proportional to 7,179.84, 9,907.02 and 4,346.73 is: 5,997.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.84 : 9,907.02 = 4,346.73 : x
  2. Step 2: Convert to fraction form
    7,179.84/9,907.02 = 4,346.73/x
  3. Step 3: Cross multiply
    7,179.84x = 9,907.02 × 4,346.73
  4. Step 4: Simplify right side
    7,179.84x = 43,063,141.04
  5. Step 5: Solve for x
    x = 43,063,141.04/7,179.84
  6. Step 6: Final answer
    x = 5,997.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.