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Finding the Fourth Proportional to 53,305.46, 79,958.46 and 22,140.74

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Solution

The fourth proportional to 53,305.46, 79,958.46 and 22,140.74 is: 33,211.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,305.46 : 79,958.46 = 22,140.74 : x
  2. Step 2: Convert to fraction form
    53,305.46/79,958.46 = 22,140.74/x
  3. Step 3: Cross multiply
    53,305.46x = 79,958.46 × 22,140.74
  4. Step 4: Simplify right side
    53,305.46x = 1,770,339,473.66
  5. Step 5: Solve for x
    x = 1,770,339,473.66/53,305.46
  6. Step 6: Final answer
    x = 33,211.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.