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Finding the Fourth Proportional to 4,992.84, 7,489.26 and 1,705.96

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Solution

The fourth proportional to 4,992.84, 7,489.26 and 1,705.96 is: 2,558.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.84 : 7,489.26 = 1,705.96 : x
  2. Step 2: Convert to fraction form
    4,992.84/7,489.26 = 1,705.96/x
  3. Step 3: Cross multiply
    4,992.84x = 7,489.26 × 1,705.96
  4. Step 4: Simplify right side
    4,992.84x = 12,776,369.46
  5. Step 5: Solve for x
    x = 12,776,369.46/4,992.84
  6. Step 6: Final answer
    x = 2,558.94

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1.5x scale

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.