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Finding the Fourth Proportional to 70,228.93, 96,892.19 and 39,992.82

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Solution

The fourth proportional to 70,228.93, 96,892.19 and 39,992.82 is: 55,176.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,228.93 : 96,892.19 = 39,992.82 : x
  2. Step 2: Convert to fraction form
    70,228.93/96,892.19 = 39,992.82/x
  3. Step 3: Cross multiply
    70,228.93x = 96,892.19 × 39,992.82
  4. Step 4: Simplify right side
    70,228.93x = 3,874,991,229.65
  5. Step 5: Solve for x
    x = 3,874,991,229.65/70,228.93
  6. Step 6: Final answer
    x = 55,176.57

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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.