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Finding the Fourth Proportional to 71,405.32, 98,535.78 and 39,573.94

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Solution

The fourth proportional to 71,405.32, 98,535.78 and 39,573.94 is: 54,610.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,405.32 : 98,535.78 = 39,573.94 : x
  2. Step 2: Convert to fraction form
    71,405.32/98,535.78 = 39,573.94/x
  3. Step 3: Cross multiply
    71,405.32x = 98,535.78 × 39,573.94
  4. Step 4: Simplify right side
    71,405.32x = 3,899,449,045.57
  5. Step 5: Solve for x
    x = 3,899,449,045.57/71,405.32
  6. Step 6: Final answer
    x = 54,610.06

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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.