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Finding the Fourth Proportional to 2,605.68, 3,592.09 and 1,858.34

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Solution

The fourth proportional to 2,605.68, 3,592.09 and 1,858.34 is: 2,561.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.68 : 3,592.09 = 1,858.34 : x
  2. Step 2: Convert to fraction form
    2,605.68/3,592.09 = 1,858.34/x
  3. Step 3: Cross multiply
    2,605.68x = 3,592.09 × 1,858.34
  4. Step 4: Simplify right side
    2,605.68x = 6,675,324.53
  5. Step 5: Solve for x
    x = 6,675,324.53/2,605.68
  6. Step 6: Final answer
    x = 2,561.84

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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.