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Finding the Fourth Proportional to 34,853.20, 52,279.80 and 11,480.40

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Solution

The fourth proportional to 34,853.20, 52,279.80 and 11,480.40 is: 17,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,853.20 : 52,279.80 = 11,480.40 : x
  2. Step 2: Convert to fraction form
    34,853.20/52,279.80 = 11,480.40/x
  3. Step 3: Cross multiply
    34,853.20x = 52,279.80 × 11,480.40
  4. Step 4: Simplify right side
    34,853.20x = 600,193,015.92
  5. Step 5: Solve for x
    x = 600,193,015.92/34,853.20
  6. Step 6: Final answer
    x = 17,220.60

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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.