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Finding the Fourth Proportional to 36,283, 50,070.72 and 21,186.04

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Solution

The fourth proportional to 36,283, 50,070.72 and 21,186.04 is: 29,236.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,283 : 50,070.72 = 21,186.04 : x
  2. Step 2: Convert to fraction form
    36,283/50,070.72 = 21,186.04/x
  3. Step 3: Cross multiply
    36,283x = 50,070.72 × 21,186.04
  4. Step 4: Simplify right side
    36,283x = 1,060,800,276.75
  5. Step 5: Solve for x
    x = 1,060,800,276.75/36,283
  6. Step 6: Final answer
    x = 29,236.84

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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.