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Finding the Fourth Proportional to 1,831.92, 2,522.90 and 1,411.53

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Solution

The fourth proportional to 1,831.92, 2,522.90 and 1,411.53 is: 1,943.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.92 : 2,522.90 = 1,411.53 : x
  2. Step 2: Convert to fraction form
    1,831.92/2,522.90 = 1,411.53/x
  3. Step 3: Cross multiply
    1,831.92x = 2,522.90 × 1,411.53
  4. Step 4: Simplify right side
    1,831.92x = 3,561,135.17
  5. Step 5: Solve for x
    x = 3,561,135.17/1,831.92
  6. Step 6: Final answer
    x = 1,943.94

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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.