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Finding the Fourth Proportional to 22,301.60, 33,387.60 and 21,653.60

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Solution

The fourth proportional to 22,301.60, 33,387.60 and 21,653.60 is: 32,417.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,301.60 : 33,387.60 = 21,653.60 : x
  2. Step 2: Convert to fraction form
    22,301.60/33,387.60 = 21,653.60/x
  3. Step 3: Cross multiply
    22,301.60x = 33,387.60 × 21,653.60
  4. Step 4: Simplify right side
    22,301.60x = 722,961,735.36
  5. Step 5: Solve for x
    x = 722,961,735.36/22,301.60
  6. Step 6: Final answer
    x = 32,417.48

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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.