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Finding the Fourth Proportional to 71,573.36, 98,774.25 and 39,745.22

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Solution

The fourth proportional to 71,573.36, 98,774.25 and 39,745.22 is: 54,850.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,573.36 : 98,774.25 = 39,745.22 : x
  2. Step 2: Convert to fraction form
    71,573.36/98,774.25 = 39,745.22/x
  3. Step 3: Cross multiply
    71,573.36x = 98,774.25 × 39,745.22
  4. Step 4: Simplify right side
    71,573.36x = 3,925,804,296.59
  5. Step 5: Solve for x
    x = 3,925,804,296.59/71,573.36
  6. Step 6: Final answer
    x = 54,850.08

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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.