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Finding the Fourth Proportional to 2,982.01, 4,114.99 and 1,655.64

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Solution

The fourth proportional to 2,982.01, 4,114.99 and 1,655.64 is: 2,284.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.01 : 4,114.99 = 1,655.64 : x
  2. Step 2: Convert to fraction form
    2,982.01/4,114.99 = 1,655.64/x
  3. Step 3: Cross multiply
    2,982.01x = 4,114.99 × 1,655.64
  4. Step 4: Simplify right side
    2,982.01x = 6,812,942.04
  5. Step 5: Solve for x
    x = 6,812,942.04/2,982.01
  6. Step 6: Final answer
    x = 2,284.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.