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Finding the Fourth Proportional to 1,849.19, 2,772.16 and 695.75

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Solution

The fourth proportional to 1,849.19, 2,772.16 and 695.75 is: 1,043.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,849.19 : 2,772.16 = 695.75 : x
  2. Step 2: Convert to fraction form
    1,849.19/2,772.16 = 695.75/x
  3. Step 3: Cross multiply
    1,849.19x = 2,772.16 × 695.75
  4. Step 4: Simplify right side
    1,849.19x = 1,928,714.72
  5. Step 5: Solve for x
    x = 1,928,714.72/1,849.19
  6. Step 6: Final answer
    x = 1,043.01

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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.