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Finding the Fourth Proportional to 59,362, 81,896.84 and 39,228.56

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Solution

The fourth proportional to 59,362, 81,896.84 and 39,228.56 is: 54,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,362 : 81,896.84 = 39,228.56 : x
  2. Step 2: Convert to fraction form
    59,362/81,896.84 = 39,228.56/x
  3. Step 3: Cross multiply
    59,362x = 81,896.84 × 39,228.56
  4. Step 4: Simplify right side
    59,362x = 3,212,695,101.75
  5. Step 5: Solve for x
    x = 3,212,695,101.75/59,362
  6. Step 6: Final answer
    x = 54,120.40

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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.