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Finding the Fourth Proportional to 4,994.40, 7,489.12 and 1,706.56

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Solution

The fourth proportional to 4,994.40, 7,489.12 and 1,706.56 is: 2,558.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,994.40 : 7,489.12 = 1,706.56 : x
  2. Step 2: Convert to fraction form
    4,994.40/7,489.12 = 1,706.56/x
  3. Step 3: Cross multiply
    4,994.40x = 7,489.12 × 1,706.56
  4. Step 4: Simplify right side
    4,994.40x = 12,780,632.63
  5. Step 5: Solve for x
    x = 12,780,632.63/4,994.40
  6. Step 6: Final answer
    x = 2,558.99

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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.