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Finding the Fourth Proportional to 65,852.73, 90,876.60 and 35,638.11

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Solution

The fourth proportional to 65,852.73, 90,876.60 and 35,638.11 is: 49,180.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,852.73 : 90,876.60 = 35,638.11 : x
  2. Step 2: Convert to fraction form
    65,852.73/90,876.60 = 35,638.11/x
  3. Step 3: Cross multiply
    65,852.73x = 90,876.60 × 35,638.11
  4. Step 4: Simplify right side
    65,852.73x = 3,238,670,267.23
  5. Step 5: Solve for x
    x = 3,238,670,267.23/65,852.73
  6. Step 6: Final answer
    x = 49,180.50

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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.