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Finding the Fourth Proportional to 70,228.51, 96,891.60 and 39,992.39

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Solution

The fourth proportional to 70,228.51, 96,891.60 and 39,992.39 is: 55,175.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,228.51 : 96,891.60 = 39,992.39 : x
  2. Step 2: Convert to fraction form
    70,228.51/96,891.60 = 39,992.39/x
  3. Step 3: Cross multiply
    70,228.51x = 96,891.60 × 39,992.39
  4. Step 4: Simplify right side
    70,228.51x = 3,874,926,202.17
  5. Step 5: Solve for x
    x = 3,874,926,202.17/70,228.51
  6. Step 6: Final answer
    x = 55,175.97

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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.