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Finding the Fourth Proportional to 65,766.51, 90,757.67 and 35,551.85

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Solution

The fourth proportional to 65,766.51, 90,757.67 and 35,551.85 is: 49,061.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,766.51 : 90,757.67 = 35,551.85 : x
  2. Step 2: Convert to fraction form
    65,766.51/90,757.67 = 35,551.85/x
  3. Step 3: Cross multiply
    65,766.51x = 90,757.67 × 35,551.85
  4. Step 4: Simplify right side
    65,766.51x = 3,226,602,892.43
  5. Step 5: Solve for x
    x = 3,226,602,892.43/65,766.51
  6. Step 6: Final answer
    x = 49,061.49

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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.