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Finding the Fourth Proportional to 50,790.50, 70,074.68 and 32,899.22

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Solution

The fourth proportional to 50,790.50, 70,074.68 and 32,899.22 is: 45,390.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,790.50 : 70,074.68 = 32,899.22 : x
  2. Step 2: Convert to fraction form
    50,790.50/70,074.68 = 32,899.22/x
  3. Step 3: Cross multiply
    50,790.50x = 70,074.68 × 32,899.22
  4. Step 4: Simplify right side
    50,790.50x = 2,305,402,313.75
  5. Step 5: Solve for x
    x = 2,305,402,313.75/50,790.50
  6. Step 6: Final answer
    x = 45,390.42

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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.