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Finding the Fourth Proportional to 36,357.70, 50,156.78 and 21,251.00

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Solution

The fourth proportional to 36,357.70, 50,156.78 and 21,251.00 is: 29,316.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,357.70 : 50,156.78 = 21,251.00 : x
  2. Step 2: Convert to fraction form
    36,357.70/50,156.78 = 21,251.00/x
  3. Step 3: Cross multiply
    36,357.70x = 50,156.78 × 21,251.00
  4. Step 4: Simplify right side
    36,357.70x = 1,065,881,481.00
  5. Step 5: Solve for x
    x = 1,065,881,481.00/36,357.70
  6. Step 6: Final answer
    x = 29,316.53

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1.5x scale

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.