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Finding the Fourth Proportional to 28,736.40, 43,104.60 and 22,175.40

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Solution

The fourth proportional to 28,736.40, 43,104.60 and 22,175.40 is: 33,263.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736.40 : 43,104.60 = 22,175.40 : x
  2. Step 2: Convert to fraction form
    28,736.40/43,104.60 = 22,175.40/x
  3. Step 3: Cross multiply
    28,736.40x = 43,104.60 × 22,175.40
  4. Step 4: Simplify right side
    28,736.40x = 955,861,746.84
  5. Step 5: Solve for x
    x = 955,861,746.84/28,736.40
  6. Step 6: Final answer
    x = 33,263.10

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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.