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Finding the Fourth Proportional to 65,897.70, 98,912.16 and 36,329.46

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Solution

The fourth proportional to 65,897.70, 98,912.16 and 36,329.46 is: 54,530.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,897.70 : 98,912.16 = 36,329.46 : x
  2. Step 2: Convert to fraction form
    65,897.70/98,912.16 = 36,329.46/x
  3. Step 3: Cross multiply
    65,897.70x = 98,912.16 × 36,329.46
  4. Step 4: Simplify right side
    65,897.70x = 3,593,425,360.23
  5. Step 5: Solve for x
    x = 3,593,425,360.23/65,897.70
  6. Step 6: Final answer
    x = 54,530.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.