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Finding the Fourth Proportional to 36,358.70, 50,158.16 and 21,252

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Solution

The fourth proportional to 36,358.70, 50,158.16 and 21,252 is: 29,317.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,358.70 : 50,158.16 = 21,252 : x
  2. Step 2: Convert to fraction form
    36,358.70/50,158.16 = 21,252/x
  3. Step 3: Cross multiply
    36,358.70x = 50,158.16 × 21,252
  4. Step 4: Simplify right side
    36,358.70x = 1,065,961,110.06
  5. Step 5: Solve for x
    x = 1,065,961,110.06/36,358.70
  6. Step 6: Final answer
    x = 29,317.91

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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.