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Finding the Fourth Proportional to 26,490.40, 39,735.60 and 22,213.60

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Solution

The fourth proportional to 26,490.40, 39,735.60 and 22,213.60 is: 33,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,490.40 : 39,735.60 = 22,213.60 : x
  2. Step 2: Convert to fraction form
    26,490.40/39,735.60 = 22,213.60/x
  3. Step 3: Cross multiply
    26,490.40x = 39,735.60 × 22,213.60
  4. Step 4: Simplify right side
    26,490.40x = 882,670,724.16
  5. Step 5: Solve for x
    x = 882,670,724.16/26,490.40
  6. Step 6: Final answer
    x = 33,320.40

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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.