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Finding the Fourth Proportional to 65,764.65, 90,755.64 and 35,549.94

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Solution

The fourth proportional to 65,764.65, 90,755.64 and 35,549.94 is: 49,059.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,764.65 : 90,755.64 = 35,549.94 : x
  2. Step 2: Convert to fraction form
    65,764.65/90,755.64 = 35,549.94/x
  3. Step 3: Cross multiply
    65,764.65x = 90,755.64 × 35,549.94
  4. Step 4: Simplify right side
    65,764.65x = 3,226,357,556.66
  5. Step 5: Solve for x
    x = 3,226,357,556.66/65,764.65
  6. Step 6: Final answer
    x = 49,059.15

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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.