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Finding the Fourth Proportional to 22,418.80, 33,613.80 and 9,276.40

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Solution

The fourth proportional to 22,418.80, 33,613.80 and 9,276.40 is: 13,908.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,418.80 : 33,613.80 = 9,276.40 : x
  2. Step 2: Convert to fraction form
    22,418.80/33,613.80 = 9,276.40/x
  3. Step 3: Cross multiply
    22,418.80x = 33,613.80 × 9,276.40
  4. Step 4: Simplify right side
    22,418.80x = 311,815,054.32
  5. Step 5: Solve for x
    x = 311,815,054.32/22,418.80
  6. Step 6: Final answer
    x = 13,908.64

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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.