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Finding the Fourth Proportional to 65,732.67, 90,711.15 and 35,518.05

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Solution

The fourth proportional to 65,732.67, 90,711.15 and 35,518.05 is: 49,014.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,732.67 : 90,711.15 = 35,518.05 : x
  2. Step 2: Convert to fraction form
    65,732.67/90,711.15 = 35,518.05/x
  3. Step 3: Cross multiply
    65,732.67x = 90,711.15 × 35,518.05
  4. Step 4: Simplify right side
    65,732.67x = 3,221,883,161.26
  5. Step 5: Solve for x
    x = 3,221,883,161.26/65,732.67
  6. Step 6: Final answer
    x = 49,014.94

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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.