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Finding the Fourth Proportional to 36,321.99, 50,115.53 and 21,206.00

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Solution

The fourth proportional to 36,321.99, 50,115.53 and 21,206.00 is: 29,259.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,321.99 : 50,115.53 = 21,206.00 : x
  2. Step 2: Convert to fraction form
    36,321.99/50,115.53 = 21,206.00/x
  3. Step 3: Cross multiply
    36,321.99x = 50,115.53 × 21,206.00
  4. Step 4: Simplify right side
    36,321.99x = 1,062,749,572.57
  5. Step 5: Solve for x
    x = 1,062,749,572.57/36,321.99
  6. Step 6: Final answer
    x = 29,259.12

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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.