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Finding the Fourth Proportional to 40,654.48, 60,990.98 and 21,934.17

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Solution

The fourth proportional to 40,654.48, 60,990.98 and 21,934.17 is: 32,906.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,654.48 : 60,990.98 = 21,934.17 : x
  2. Step 2: Convert to fraction form
    40,654.48/60,990.98 = 21,934.17/x
  3. Step 3: Cross multiply
    40,654.48x = 60,990.98 × 21,934.17
  4. Step 4: Simplify right side
    40,654.48x = 1,337,786,523.79
  5. Step 5: Solve for x
    x = 1,337,786,523.79/40,654.48
  6. Step 6: Final answer
    x = 32,906.25

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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.