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Finding the Fourth Proportional to 22,407.20, 33,583.80 and 13,029.20

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Solution

The fourth proportional to 22,407.20, 33,583.80 and 13,029.20 is: 19,528.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,407.20 : 33,583.80 = 13,029.20 : x
  2. Step 2: Convert to fraction form
    22,407.20/33,583.80 = 13,029.20/x
  3. Step 3: Cross multiply
    22,407.20x = 33,583.80 × 13,029.20
  4. Step 4: Simplify right side
    22,407.20x = 437,570,046.96
  5. Step 5: Solve for x
    x = 437,570,046.96/22,407.20
  6. Step 6: Final answer
    x = 19,528.10

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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.