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Finding the Fourth Proportional to 22,679.72, 33,946.80 and 12,123.35

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Solution

The fourth proportional to 22,679.72, 33,946.80 and 12,123.35 is: 18,146.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,679.72 : 33,946.80 = 12,123.35 : x
  2. Step 2: Convert to fraction form
    22,679.72/33,946.80 = 12,123.35/x
  3. Step 3: Cross multiply
    22,679.72x = 33,946.80 × 12,123.35
  4. Step 4: Simplify right side
    22,679.72x = 411,548,754.41
  5. Step 5: Solve for x
    x = 411,548,754.41/22,679.72
  6. Step 6: Final answer
    x = 18,146.11

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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.