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Finding the Fourth Proportional to 53,673.54, 80,478.41 and 20,396.05

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Solution

The fourth proportional to 53,673.54, 80,478.41 and 20,396.05 is: 30,581.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,673.54 : 80,478.41 = 20,396.05 : x
  2. Step 2: Convert to fraction form
    53,673.54/80,478.41 = 20,396.05/x
  3. Step 3: Cross multiply
    53,673.54x = 80,478.41 × 20,396.05
  4. Step 4: Simplify right side
    53,673.54x = 1,641,441,938.52
  5. Step 5: Solve for x
    x = 1,641,441,938.52/53,673.54
  6. Step 6: Final answer
    x = 30,581.96

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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.