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Finding the Fourth Proportional to 4,788.54, 7,179.15 and 4,300.11

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Solution

The fourth proportional to 4,788.54, 7,179.15 and 4,300.11 is: 6,446.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.54 : 7,179.15 = 4,300.11 : x
  2. Step 2: Convert to fraction form
    4,788.54/7,179.15 = 4,300.11/x
  3. Step 3: Cross multiply
    4,788.54x = 7,179.15 × 4,300.11
  4. Step 4: Simplify right side
    4,788.54x = 30,871,134.71
  5. Step 5: Solve for x
    x = 30,871,134.71/4,788.54
  6. Step 6: Final answer
    x = 6,446.88

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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.