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Finding the Fourth Proportional to 36,698.68, 50,643.12 and 20,784.52

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Solution

The fourth proportional to 36,698.68, 50,643.12 and 20,784.52 is: 28,682.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,698.68 : 50,643.12 = 20,784.52 : x
  2. Step 2: Convert to fraction form
    36,698.68/50,643.12 = 20,784.52/x
  3. Step 3: Cross multiply
    36,698.68x = 50,643.12 × 20,784.52
  4. Step 4: Simplify right side
    36,698.68x = 1,052,592,940.50
  5. Step 5: Solve for x
    x = 1,052,592,940.50/36,698.68
  6. Step 6: Final answer
    x = 28,682.04

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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.