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Finding the Fourth Proportional to 53,440.40, 80,189.40 and 22,278.80

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Solution

The fourth proportional to 53,440.40, 80,189.40 and 22,278.80 is: 33,430.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,440.40 : 80,189.40 = 22,278.80 : x
  2. Step 2: Convert to fraction form
    53,440.40/80,189.40 = 22,278.80/x
  3. Step 3: Cross multiply
    53,440.40x = 80,189.40 × 22,278.80
  4. Step 4: Simplify right side
    53,440.40x = 1,786,523,604.72
  5. Step 5: Solve for x
    x = 1,786,523,604.72/53,440.40
  6. Step 6: Final answer
    x = 33,430.21

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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.