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Finding the Fourth Proportional to 36,507.99, 50,390.19 and 20,601.60

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Solution

The fourth proportional to 36,507.99, 50,390.19 and 20,601.60 is: 28,435.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,507.99 : 50,390.19 = 20,601.60 : x
  2. Step 2: Convert to fraction form
    36,507.99/50,390.19 = 20,601.60/x
  3. Step 3: Cross multiply
    36,507.99x = 50,390.19 × 20,601.60
  4. Step 4: Simplify right side
    36,507.99x = 1,038,118,538.30
  5. Step 5: Solve for x
    x = 1,038,118,538.30/36,507.99
  6. Step 6: Final answer
    x = 28,435.38

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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.