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Finding the Fourth Proportional to 71,196.16, 98,249.63 and 38,930.88

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Solution

The fourth proportional to 71,196.16, 98,249.63 and 38,930.88 is: 53,724.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,196.16 : 98,249.63 = 38,930.88 : x
  2. Step 2: Convert to fraction form
    71,196.16/98,249.63 = 38,930.88/x
  3. Step 3: Cross multiply
    71,196.16x = 98,249.63 × 38,930.88
  4. Step 4: Simplify right side
    71,196.16x = 3,824,944,729.36
  5. Step 5: Solve for x
    x = 3,824,944,729.36/71,196.16
  6. Step 6: Final answer
    x = 53,724.03

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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.