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Finding the Fourth Proportional to 65,762.89, 90,757.40 and 37,085.11

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Solution

The fourth proportional to 65,762.89, 90,757.40 and 37,085.11 is: 51,180.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,762.89 : 90,757.40 = 37,085.11 : x
  2. Step 2: Convert to fraction form
    65,762.89/90,757.40 = 37,085.11/x
  3. Step 3: Cross multiply
    65,762.89x = 90,757.40 × 37,085.11
  4. Step 4: Simplify right side
    65,762.89x = 3,365,747,749.99
  5. Step 5: Solve for x
    x = 3,365,747,749.99/65,762.89
  6. Step 6: Final answer
    x = 51,180.05

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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.