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Finding the Fourth Proportional to 40,644.79, 60,965.97 and 11,061.66

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Solution

The fourth proportional to 40,644.79, 60,965.97 and 11,061.66 is: 16,592.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,644.79 : 60,965.97 = 11,061.66 : x
  2. Step 2: Convert to fraction form
    40,644.79/60,965.97 = 11,061.66/x
  3. Step 3: Cross multiply
    40,644.79x = 60,965.97 × 11,061.66
  4. Step 4: Simplify right side
    40,644.79x = 674,385,018.85
  5. Step 5: Solve for x
    x = 674,385,018.85/40,644.79
  6. Step 6: Final answer
    x = 16,592.16

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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.