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Finding the Fourth Proportional to 67,782.48, 101,485.92 and 51,091.92

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Solution

The fourth proportional to 67,782.48, 101,485.92 and 51,091.92 is: 76,496.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,782.48 : 101,485.92 = 51,091.92 : x
  2. Step 2: Convert to fraction form
    67,782.48/101,485.92 = 51,091.92/x
  3. Step 3: Cross multiply
    67,782.48x = 101,485.92 × 51,091.92
  4. Step 4: Simplify right side
    67,782.48x = 5,185,110,505.77
  5. Step 5: Solve for x
    x = 5,185,110,505.77/67,782.48
  6. Step 6: Final answer
    x = 76,496.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.