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Finding the Fourth Proportional to 43,486.62, 65,229.96 and 10,654.62

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Solution

The fourth proportional to 43,486.62, 65,229.96 and 10,654.62 is: 15,981.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,486.62 : 65,229.96 = 10,654.62 : x
  2. Step 2: Convert to fraction form
    43,486.62/65,229.96 = 10,654.62/x
  3. Step 3: Cross multiply
    43,486.62x = 65,229.96 × 10,654.62
  4. Step 4: Simplify right side
    43,486.62x = 695,000,436.42
  5. Step 5: Solve for x
    x = 695,000,436.42/43,486.62
  6. Step 6: Final answer
    x = 15,981.94

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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.