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Finding the Fourth Proportional to 70,175.56, 96,843.54 and 38,345.80

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Solution

The fourth proportional to 70,175.56, 96,843.54 and 38,345.80 is: 52,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,175.56 : 96,843.54 = 38,345.80 : x
  2. Step 2: Convert to fraction form
    70,175.56/96,843.54 = 38,345.80/x
  3. Step 3: Cross multiply
    70,175.56x = 96,843.54 × 38,345.80
  4. Step 4: Simplify right side
    70,175.56x = 3,713,543,016.13
  5. Step 5: Solve for x
    x = 3,713,543,016.13/70,175.56
  6. Step 6: Final answer
    x = 52,917.90

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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.