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Finding the Fourth Proportional to 2,605.66, 3,595.81 and 1,426.73

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Solution

The fourth proportional to 2,605.66, 3,595.81 and 1,426.73 is: 1,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.66 : 3,595.81 = 1,426.73 : x
  2. Step 2: Convert to fraction form
    2,605.66/3,595.81 = 1,426.73/x
  3. Step 3: Cross multiply
    2,605.66x = 3,595.81 × 1,426.73
  4. Step 4: Simplify right side
    2,605.66x = 5,130,237.44
  5. Step 5: Solve for x
    x = 5,130,237.44/2,605.66
  6. Step 6: Final answer
    x = 1,968.88

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1.5x scale

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.