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Finding the Fourth Proportional to 22,362.64, 33,568.22 and 13,012.80

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Solution

The fourth proportional to 22,362.64, 33,568.22 and 13,012.80 is: 19,533.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,362.64 : 33,568.22 = 13,012.80 : x
  2. Step 2: Convert to fraction form
    22,362.64/33,568.22 = 13,012.80/x
  3. Step 3: Cross multiply
    22,362.64x = 33,568.22 × 13,012.80
  4. Step 4: Simplify right side
    22,362.64x = 436,816,533.22
  5. Step 5: Solve for x
    x = 436,816,533.22/22,362.64
  6. Step 6: Final answer
    x = 19,533.32

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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.