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Finding the Fourth Proportional to 60,079.92, 82,912.56 and 39,901.92

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Solution

The fourth proportional to 60,079.92, 82,912.56 and 39,901.92 is: 55,066.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,079.92 : 82,912.56 = 39,901.92 : x
  2. Step 2: Convert to fraction form
    60,079.92/82,912.56 = 39,901.92/x
  3. Step 3: Cross multiply
    60,079.92x = 82,912.56 × 39,901.92
  4. Step 4: Simplify right side
    60,079.92x = 3,308,370,336.12
  5. Step 5: Solve for x
    x = 3,308,370,336.12/60,079.92
  6. Step 6: Final answer
    x = 55,066.16

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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.