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Finding the Fourth Proportional to 50,626.62, 75,918.06 and 19,440

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Solution

The fourth proportional to 50,626.62, 75,918.06 and 19,440 is: 29,151.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,626.62 : 75,918.06 = 19,440 : x
  2. Step 2: Convert to fraction form
    50,626.62/75,918.06 = 19,440/x
  3. Step 3: Cross multiply
    50,626.62x = 75,918.06 × 19,440
  4. Step 4: Simplify right side
    50,626.62x = 1,475,847,086.40
  5. Step 5: Solve for x
    x = 1,475,847,086.40/50,626.62
  6. Step 6: Final answer
    x = 29,151.60

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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.