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Finding the Fourth Proportional to 1,906.64, 2,860.92 and 1,357.52

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Solution

The fourth proportional to 1,906.64, 2,860.92 and 1,357.52 is: 2,036.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.64 : 2,860.92 = 1,357.52 : x
  2. Step 2: Convert to fraction form
    1,906.64/2,860.92 = 1,357.52/x
  3. Step 3: Cross multiply
    1,906.64x = 2,860.92 × 1,357.52
  4. Step 4: Simplify right side
    1,906.64x = 3,883,756.12
  5. Step 5: Solve for x
    x = 3,883,756.12/1,906.64
  6. Step 6: Final answer
    x = 2,036.96

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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.