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Finding the Fourth Proportional to 4,991.21, 7,484.22 and 1,703.21

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Solution

The fourth proportional to 4,991.21, 7,484.22 and 1,703.21 is: 2,553.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.21 : 7,484.22 = 1,703.21 : x
  2. Step 2: Convert to fraction form
    4,991.21/7,484.22 = 1,703.21/x
  3. Step 3: Cross multiply
    4,991.21x = 7,484.22 × 1,703.21
  4. Step 4: Simplify right side
    4,991.21x = 12,747,160.93
  5. Step 5: Solve for x
    x = 12,747,160.93/4,991.21
  6. Step 6: Final answer
    x = 2,553.92

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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.