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Finding the Fourth Proportional to 65,821.48, 90,833.37 and 35,606.73

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Solution

The fourth proportional to 65,821.48, 90,833.37 and 35,606.73 is: 49,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,821.48 : 90,833.37 = 35,606.73 : x
  2. Step 2: Convert to fraction form
    65,821.48/90,833.37 = 35,606.73/x
  3. Step 3: Cross multiply
    65,821.48x = 90,833.37 × 35,606.73
  4. Step 4: Simplify right side
    65,821.48x = 3,234,278,924.12
  5. Step 5: Solve for x
    x = 3,234,278,924.12/65,821.48
  6. Step 6: Final answer
    x = 49,137.13

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1.5x scale

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.