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Finding the Fourth Proportional to 22,340.64, 33,343.80 and 21,971.60

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Solution

The fourth proportional to 22,340.64, 33,343.80 and 21,971.60 is: 32,792.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,340.64 : 33,343.80 = 21,971.60 : x
  2. Step 2: Convert to fraction form
    22,340.64/33,343.80 = 21,971.60/x
  3. Step 3: Cross multiply
    22,340.64x = 33,343.80 × 21,971.60
  4. Step 4: Simplify right side
    22,340.64x = 732,616,469.36
  5. Step 5: Solve for x
    x = 732,616,469.36/22,340.64
  6. Step 6: Final answer
    x = 32,792.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.