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Finding the Fourth Proportional to 84,611.70, 116,789.82 and 48,825.12

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Solution

The fourth proportional to 84,611.70, 116,789.82 and 48,825.12 is: 67,393.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,611.70 : 116,789.82 = 48,825.12 : x
  2. Step 2: Convert to fraction form
    84,611.70/116,789.82 = 48,825.12/x
  3. Step 3: Cross multiply
    84,611.70x = 116,789.82 × 48,825.12
  4. Step 4: Simplify right side
    84,611.70x = 5,702,276,976.28
  5. Step 5: Solve for x
    x = 5,702,276,976.28/84,611.70
  6. Step 6: Final answer
    x = 67,393.48

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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.