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Finding the Fourth Proportional to 28,805.40, 43,208.10 and 22,244.40

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Solution

The fourth proportional to 28,805.40, 43,208.10 and 22,244.40 is: 33,366.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,805.40 : 43,208.10 = 22,244.40 : x
  2. Step 2: Convert to fraction form
    28,805.40/43,208.10 = 22,244.40/x
  3. Step 3: Cross multiply
    28,805.40x = 43,208.10 × 22,244.40
  4. Step 4: Simplify right side
    28,805.40x = 961,138,259.64
  5. Step 5: Solve for x
    x = 961,138,259.64/28,805.40
  6. Step 6: Final answer
    x = 33,366.60

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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.