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Finding the Fourth Proportional to 65,942.58, 91,000.64 and 35,728.68

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Solution

The fourth proportional to 65,942.58, 91,000.64 and 35,728.68 is: 49,305.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,942.58 : 91,000.64 = 35,728.68 : x
  2. Step 2: Convert to fraction form
    65,942.58/91,000.64 = 35,728.68/x
  3. Step 3: Cross multiply
    65,942.58x = 91,000.64 × 35,728.68
  4. Step 4: Simplify right side
    65,942.58x = 3,251,332,746.36
  5. Step 5: Solve for x
    x = 3,251,332,746.36/65,942.58
  6. Step 6: Final answer
    x = 49,305.51

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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.