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Finding the Fourth Proportional to 61,272.96, 91,911.84 and 27,994.92

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Solution

The fourth proportional to 61,272.96, 91,911.84 and 27,994.92 is: 41,993.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,272.96 : 91,911.84 = 27,994.92 : x
  2. Step 2: Convert to fraction form
    61,272.96/91,911.84 = 27,994.92/x
  3. Step 3: Cross multiply
    61,272.96x = 91,911.84 × 27,994.92
  4. Step 4: Simplify right side
    61,272.96x = 2,573,064,607.85
  5. Step 5: Solve for x
    x = 2,573,064,607.85/61,272.96
  6. Step 6: Final answer
    x = 41,993.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.