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Finding the Fourth Proportional to 2,591.76, 3,893.08 and 1,973.30

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Solution

The fourth proportional to 2,591.76, 3,893.08 and 1,973.30 is: 2,964.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.76 : 3,893.08 = 1,973.30 : x
  2. Step 2: Convert to fraction form
    2,591.76/3,893.08 = 1,973.30/x
  3. Step 3: Cross multiply
    2,591.76x = 3,893.08 × 1,973.30
  4. Step 4: Simplify right side
    2,591.76x = 7,682,214.76
  5. Step 5: Solve for x
    x = 7,682,214.76/2,591.76
  6. Step 6: Final answer
    x = 2,964.09

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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.