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Finding the Fourth Proportional to 22,136.52, 30,548.40 and 12,200.52

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Solution

The fourth proportional to 22,136.52, 30,548.40 and 12,200.52 is: 16,836.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,136.52 : 30,548.40 = 12,200.52 : x
  2. Step 2: Convert to fraction form
    22,136.52/30,548.40 = 12,200.52/x
  3. Step 3: Cross multiply
    22,136.52x = 30,548.40 × 12,200.52
  4. Step 4: Simplify right side
    22,136.52x = 372,706,365.17
  5. Step 5: Solve for x
    x = 372,706,365.17/22,136.52
  6. Step 6: Final answer
    x = 16,836.72

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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.