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Finding the Fourth Proportional to 13,136.92, 19,702.41 and 3,776.92

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Solution

The fourth proportional to 13,136.92, 19,702.41 and 3,776.92 is: 5,664.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.92 : 19,702.41 = 3,776.92 : x
  2. Step 2: Convert to fraction form
    13,136.92/19,702.41 = 3,776.92/x
  3. Step 3: Cross multiply
    13,136.92x = 19,702.41 × 3,776.92
  4. Step 4: Simplify right side
    13,136.92x = 74,414,426.38
  5. Step 5: Solve for x
    x = 74,414,426.38/13,136.92
  6. Step 6: Final answer
    x = 5,664.53

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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.