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Finding the Fourth Proportional to 1,812.66, 2,502.67 and 1,392.26

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Solution

The fourth proportional to 1,812.66, 2,502.67 and 1,392.26 is: 1,922.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.66 : 2,502.67 = 1,392.26 : x
  2. Step 2: Convert to fraction form
    1,812.66/2,502.67 = 1,392.26/x
  3. Step 3: Cross multiply
    1,812.66x = 2,502.67 × 1,392.26
  4. Step 4: Simplify right side
    1,812.66x = 3,484,362.82
  5. Step 5: Solve for x
    x = 3,484,362.82/1,812.66
  6. Step 6: Final answer
    x = 1,922.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.