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Finding the Fourth Proportional to 3,792.59, 5,687.73 and 1,326.95

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Solution

The fourth proportional to 3,792.59, 5,687.73 and 1,326.95 is: 1,990.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,792.59 : 5,687.73 = 1,326.95 : x
  2. Step 2: Convert to fraction form
    3,792.59/5,687.73 = 1,326.95/x
  3. Step 3: Cross multiply
    3,792.59x = 5,687.73 × 1,326.95
  4. Step 4: Simplify right side
    3,792.59x = 7,547,333.32
  5. Step 5: Solve for x
    x = 7,547,333.32/3,792.59
  6. Step 6: Final answer
    x = 1,990.02

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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.