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Finding the Fourth Proportional to 49,363.60, 68,114.28 and 28,141.84

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Solution

The fourth proportional to 49,363.60, 68,114.28 and 28,141.84 is: 38,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,363.60 : 68,114.28 = 28,141.84 : x
  2. Step 2: Convert to fraction form
    49,363.60/68,114.28 = 28,141.84/x
  3. Step 3: Cross multiply
    49,363.60x = 68,114.28 × 28,141.84
  4. Step 4: Simplify right side
    49,363.60x = 1,916,861,169.48
  5. Step 5: Solve for x
    x = 1,916,861,169.48/49,363.60
  6. Step 6: Final answer
    x = 38,831.47

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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.