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Finding the Fourth Proportional to 1,849.02, 2,772.76 and 752.64

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Solution

The fourth proportional to 1,849.02, 2,772.76 and 752.64 is: 1,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,849.02 : 2,772.76 = 752.64 : x
  2. Step 2: Convert to fraction form
    1,849.02/2,772.76 = 752.64/x
  3. Step 3: Cross multiply
    1,849.02x = 2,772.76 × 752.64
  4. Step 4: Simplify right side
    1,849.02x = 2,086,890.09
  5. Step 5: Solve for x
    x = 2,086,890.09/1,849.02
  6. Step 6: Final answer
    x = 1,128.65

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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.