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Finding the Fourth Proportional to 65,771.76, 90,763.02 and 37,476.03

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Solution

The fourth proportional to 65,771.76, 90,763.02 and 37,476.03 is: 51,715.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,771.76 : 90,763.02 = 37,476.03 : x
  2. Step 2: Convert to fraction form
    65,771.76/90,763.02 = 37,476.03/x
  3. Step 3: Cross multiply
    65,771.76x = 90,763.02 × 37,476.03
  4. Step 4: Simplify right side
    65,771.76x = 3,401,437,660.41
  5. Step 5: Solve for x
    x = 3,401,437,660.41/65,771.76
  6. Step 6: Final answer
    x = 51,715.78

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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.