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Finding the Fourth Proportional to 49,607.80, 74,411.70 and 29,876.20

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Solution

The fourth proportional to 49,607.80, 74,411.70 and 29,876.20 is: 44,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,607.80 : 74,411.70 = 29,876.20 : x
  2. Step 2: Convert to fraction form
    49,607.80/74,411.70 = 29,876.20/x
  3. Step 3: Cross multiply
    49,607.80x = 74,411.70 × 29,876.20
  4. Step 4: Simplify right side
    49,607.80x = 2,223,138,831.54
  5. Step 5: Solve for x
    x = 2,223,138,831.54/49,607.80
  6. Step 6: Final answer
    x = 44,814.30

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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.