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Finding the Fourth Proportional to 70,197.82, 96,878.73 and 39,992.59

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Solution

The fourth proportional to 70,197.82, 96,878.73 and 39,992.59 is: 55,193.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,197.82 : 96,878.73 = 39,992.59 : x
  2. Step 2: Convert to fraction form
    70,197.82/96,878.73 = 39,992.59/x
  3. Step 3: Cross multiply
    70,197.82x = 96,878.73 × 39,992.59
  4. Step 4: Simplify right side
    70,197.82x = 3,874,431,328.61
  5. Step 5: Solve for x
    x = 3,874,431,328.61/70,197.82
  6. Step 6: Final answer
    x = 55,193.04

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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.