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Finding the Fourth Proportional to 65,696.51, 90,661.17 and 35,481.83

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Solution

The fourth proportional to 65,696.51, 90,661.17 and 35,481.83 is: 48,964.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,696.51 : 90,661.17 = 35,481.83 : x
  2. Step 2: Convert to fraction form
    65,696.51/90,661.17 = 35,481.83/x
  3. Step 3: Cross multiply
    65,696.51x = 90,661.17 × 35,481.83
  4. Step 4: Simplify right side
    65,696.51x = 3,216,823,768.24
  5. Step 5: Solve for x
    x = 3,216,823,768.24/65,696.51
  6. Step 6: Final answer
    x = 48,964.91

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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.