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Finding the Fourth Proportional to 28,736.40, 43,007.40 and 25,237.20

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Solution

The fourth proportional to 28,736.40, 43,007.40 and 25,237.20 is: 37,770.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736.40 : 43,007.40 = 25,237.20 : x
  2. Step 2: Convert to fraction form
    28,736.40/43,007.40 = 25,237.20/x
  3. Step 3: Cross multiply
    28,736.40x = 43,007.40 × 25,237.20
  4. Step 4: Simplify right side
    28,736.40x = 1,085,386,355.28
  5. Step 5: Solve for x
    x = 1,085,386,355.28/28,736.40
  6. Step 6: Final answer
    x = 37,770.44

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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.