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Finding the Fourth Proportional to 70,283.65, 96,993.75 and 38,451.82

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Solution

The fourth proportional to 70,283.65, 96,993.75 and 38,451.82 is: 53,064.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,283.65 : 96,993.75 = 38,451.82 : x
  2. Step 2: Convert to fraction form
    70,283.65/96,993.75 = 38,451.82/x
  3. Step 3: Cross multiply
    70,283.65x = 96,993.75 × 38,451.82
  4. Step 4: Simplify right side
    70,283.65x = 3,729,586,216.13
  5. Step 5: Solve for x
    x = 3,729,586,216.13/70,283.65
  6. Step 6: Final answer
    x = 53,064.78

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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.