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Finding the Fourth Proportional to 22,289.80, 33,453.60 and 9,151.60

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Solution

The fourth proportional to 22,289.80, 33,453.60 and 9,151.60 is: 13,735.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,289.80 : 33,453.60 = 9,151.60 : x
  2. Step 2: Convert to fraction form
    22,289.80/33,453.60 = 9,151.60/x
  3. Step 3: Cross multiply
    22,289.80x = 33,453.60 × 9,151.60
  4. Step 4: Simplify right side
    22,289.80x = 306,153,965.76
  5. Step 5: Solve for x
    x = 306,153,965.76/22,289.80
  6. Step 6: Final answer
    x = 13,735.16

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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.