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Finding the Fourth Proportional to 38,376.92, 52,946.42 and 21,609.92

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Solution

The fourth proportional to 38,376.92, 52,946.42 and 21,609.92 is: 29,813.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,376.92 : 52,946.42 = 21,609.92 : x
  2. Step 2: Convert to fraction form
    38,376.92/52,946.42 = 21,609.92/x
  3. Step 3: Cross multiply
    38,376.92x = 52,946.42 × 21,609.92
  4. Step 4: Simplify right side
    38,376.92x = 1,144,167,527.70
  5. Step 5: Solve for x
    x = 1,144,167,527.70/38,376.92
  6. Step 6: Final answer
    x = 29,813.95

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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.