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Finding the Fourth Proportional to 81,825.09, 112,917.54 and 46,015.09

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Solution

The fourth proportional to 81,825.09, 112,917.54 and 46,015.09 is: 63,500.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,825.09 : 112,917.54 = 46,015.09 : x
  2. Step 2: Convert to fraction form
    81,825.09/112,917.54 = 46,015.09/x
  3. Step 3: Cross multiply
    81,825.09x = 112,917.54 × 46,015.09
  4. Step 4: Simplify right side
    81,825.09x = 5,195,910,655.94
  5. Step 5: Solve for x
    x = 5,195,910,655.94/81,825.09
  6. Step 6: Final answer
    x = 63,500.22

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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.