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Finding the Fourth Proportional to 5,090.79, 7,633.82 and 2,983.05

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Solution

The fourth proportional to 5,090.79, 7,633.82 and 2,983.05 is: 4,473.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.79 : 7,633.82 = 2,983.05 : x
  2. Step 2: Convert to fraction form
    5,090.79/7,633.82 = 2,983.05/x
  3. Step 3: Cross multiply
    5,090.79x = 7,633.82 × 2,983.05
  4. Step 4: Simplify right side
    5,090.79x = 22,772,051.84
  5. Step 5: Solve for x
    x = 22,772,051.84/5,090.79
  6. Step 6: Final answer
    x = 4,473.19

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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.