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Finding the Fourth Proportional to 1,792.92, 2,474.42 and 1,007.24

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Solution

The fourth proportional to 1,792.92, 2,474.42 and 1,007.24 is: 1,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792.92 : 2,474.42 = 1,007.24 : x
  2. Step 2: Convert to fraction form
    1,792.92/2,474.42 = 1,007.24/x
  3. Step 3: Cross multiply
    1,792.92x = 2,474.42 × 1,007.24
  4. Step 4: Simplify right side
    1,792.92x = 2,492,334.80
  5. Step 5: Solve for x
    x = 2,492,334.80/1,792.92
  6. Step 6: Final answer
    x = 1,390.10

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Why These Related Problems?

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