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Finding the Fourth Proportional to 22,229.62, 30,673 and 13,276.58

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Solution

The fourth proportional to 22,229.62, 30,673 and 13,276.58 is: 18,319.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,229.62 : 30,673 = 13,276.58 : x
  2. Step 2: Convert to fraction form
    22,229.62/30,673 = 13,276.58/x
  3. Step 3: Cross multiply
    22,229.62x = 30,673 × 13,276.58
  4. Step 4: Simplify right side
    22,229.62x = 407,232,538.34
  5. Step 5: Solve for x
    x = 407,232,538.34/22,229.62
  6. Step 6: Final answer
    x = 18,319.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.